Scientific evidence for mask wearing
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- čas přidán 20. 05. 2020
- Masks and hamsters
www.foxnews.com/health/wearin...
fightcovid19.hku.hk/hku-hamst...
jamanetwork.com/journals/jama...
Hong Kong
Rate transmission through respiratory droplets or airborne particles dropped up to 75% using masks.
Public mask wearing effectiveness, huge,” (Dr. Yuen Kwok-yung)
Transmission can be reduced by 50 percent, especially when masks are worn by infected people
Universal masking = 80% will significantly flatten the curve
www.who.int/news-room/q-a-det...
Linda Bourouiba JAMA
Sneeze (10-30 m/s), 7 - 8 m or 23-26 feet
Cough 5 - 6 metres or 19 feet,
Breath 2 metres or 7 feet
Masks, droplets come out of the side, reduces range
Background
Dichotomous classification between large vs small droplets, or droplets vs aerosol
Arbitrary droplet diameter cutoffs, from 5 to 10 μm
Host-to-host transmission as droplets or aerosol routes
Rapid international spread of COVID-19, using arbitrary droplet size cutoffs may not be accurate
Possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease.
Recent work
Exhalations, sneezes, and coughs, mucosalivary droplets
Multiphase turbulent gas cloud
Continuum of droplet sizes
Droplets can survive for minutes in clouds
Payload of pathogen-bearing droplets
A hot and moist gas cloud
Ambient environment (temperature, humidity, and airflow)
Residues or droplet nuclei that may stay suspended in the air for hours
Ambient environment (temperature, humidity, and airflow).
China (2020), COVID-19 found in ventilation systems in hospital rooms of infected patients
Implications
World Health Organization recommendations 3-foot (1-m)
Centers for Disease Control, 6-foot (2-m) separation.
May underestimate the distance
Mask efficacy as source control depends on the ability of the mask to trap or alter the high-momentum gas cloud emission with its pathogenic payload.
To be clear though, a 50% reduction in hamsters in cages does not mean a 50 reduction to people out and about in the world.
mymathmind Maybe we should try it and see what happens.
Right! Most people wear dirty masks, keep touching masks, take off and put on masks, etc, putting people at INCREASED risk. Go out and watch-you will witness this all over.
Leslie H yes I have witnessed people wearing some dirty mask over this last week , obviously stained and with a moist ,warm environment is a veritable cesspool of bacteria..
@@leslieh3785 I see misuse of the masks all of the time. I also see these used masks all over the ground, in shopping carts and on transit where I live.
Aaron Blandon that’s an interesting hypothesis. You’d have to test it though, right?
Seems the only thing missing from the study was both cages "masked".
interesting point
Yes, that's what I was hoping to see.
@@UKIP Me, too.
@G C you got it,5%!!
He covered that czcams.com/video/zhQw7vLNsDA/video.html
me: picturing a bunch of hamsters wearing masks
John: it's not like the individual hamsters were wearing masks that would be silly.
me: >:(
Im afraid my own doctor suggested mask_wearing for me could be dangerous because I suffer from asthma. I would like to hear your comment Dr Campbell.
Yes we dont need to wrar one i live by the sea and need to get air got asthma. So grandaugther no mash for us. I been out every day at shops and sons will not wear them it all fear mongers
get a reusable half face respirator. Due to the separate exhaust valve, they don't restrict breathing or increase CO2 levels like disposable face masks do. They look ridiculous, but they actually work to filter air too, being able to get a full seal on teh face, that disposable masks can't achieve & if you have asthma severe enough for your doctor to be discussing a mask's impacts on your breathing, you're going to be at high risk with this virus & so need to protect yourself. Be sure to shower & wash everything down when you get home, or wearing it is useless!
I have asthma myself & wore my half face respirator almost everytime I went outside for nearly 3 months this summer, due to living in Australia, where we had constant extreme smoke. Anytime I tried to go out without it on, I immediately got a severe asthma attack. It got to the point where it became such a routine for me that on one occasion I took it off to talk to someone, cause I didn't think the smoke was THAT bad that day & I found there wasn't ANY smoke in the air & I was walking around looking like an idiot for nothing lol At the opposite extreme, I tried to sunbake one day & had to give up, because not only was there no sun due to teh smoke, but I got covered in ash & my eyes were filled with it, but I couldn't smell any of it & had no trouble at all breathing because of the mask, so yeh a half face respirator will work if you need a mask for this virus :)
Look i live on an island. No boats we can not get off or on lots of walks lovely. Hills sea beachs. We got monkey. Trees. Is very quiet some buses on my sons nevet been in no masks for them they go walks wete no one can go. So i take vitamins d3 muilt ones. Lots of friut veg no vaccine. For me or family our bodies can fight it get out enj. Summer as you dont no what winter will bring get lots of sun. We had a very hot time partys in garden i got good times wi4h boys pals girlfriend s fires drink got to live
@@lilaclizard4504 no way i dont wash any thing go to shops sit talk in bus stop no one got mwsks on to hot all i do went home is wash my hands wi4h a bar of soap. We got great air not many buses or cars. I dont worry.
twitter.com/FlirtyNikka/status/1279594487027658752?s=19
What drives me crazy are the people who wear a mask over their mouths, but leave their noses exposed. Sort of defeats the purpose.
Ikr!
You;re right I've noticed too.
Yes I had a social distanced coffee with someone yesterday. She wore a mask and then after wearing it only covering her mouth the entire time she then just pulled it down completely, totally negating the entire point of wearing one in the first place We’re in Italy and are allowed to meet up now.
This is the reason it's pointless. People don't understand it and it's antithetical to our culture.
@@ucatronic How can you drink coffee together while wearing masks?
My thanks to these hamsters acting as guinea pigs for this study. * Hardly any tongue in cheek intended.
LOL. Thanks.
I hope not, all animals want to live.
Those hamsters must be fine and healthy because infected cats do not show any symptoms.
You say "thanks", but did they have a choice. I guess not. Forced into research. What a career.
🤣🤣🤣🤣🤣🤣❤👍
"Certainly public transport." With that pause and stare, I felt like hiding!
ya, pretty intimidating looks
well-meaning doctor, but there are many studies with no bias that demonstrate opposite information in this video.
There is a video "ANTI-MASKERS: RIGHT OR SELFISH?" on The HighWire channel
here on YT with Dr. Denis Rancourt, who has looked at many randomized,
controlled studies.
this guy gets a cent from every mask he sells from china, doctors are trained to wear masks and its not easy, you can not touch the mask while its on, before you put it on you have to sterillise , when you take them off you have to sterillise, you should only wear them once and for a short time and so on other wise they cause much more harm than good
@@jingoozrajaii53 too many brainwashed and have bought into the fear propaganda to receive this information...very sad really that the non biased scientific studies are being ignored.
Chinese have been saying this since January, they knew what they said!. Thanks Doctor, let's hope people take this seriously
remember when asian people were beaten up for wearing masks in public? This is more than just ignorance
So, I'm very confused. why the scientists in Europe didn't do experiments to prove whether this method is useful or not? What they did in these 4 months?
I wonder what the actual infection rate would have been if both cages were masked at the same time, stunningly low I presume? Another great video, thank you.
I thought of the same thing, a bit of a glaring omission, in the trial.
That's what I would have liked to see.
This guess by no means matches an experimental result, but it should be somewhere around 15% * 15% (or 0.15 * 0.15) or 2.25% overall.
One could guess it would be a 5% infection rate, based on 33% (group B infection rate) of 15% (group A infection rate). It's logical unless the specific viruses that made their way through the infected hamsters' mask were exceptionally good at breaking through barriers and would go through the healthy hamsters' mask as well.
one can speculate by combining data, and I calclulate that the 66 hamsters in the well cage who got sick are reduced to only 8. It's worth it to me to wear a mask.
The cited research also indicates that non-infected hamsters wearing a mask received a lower viral load which is important.
My poem: Staying Home
I miss my Mom, my children too,
But staying home’s the thing to do,
I bake and sew and read and yet,
I’m glad I’ve got the internet!
I check on Facebook every day
For family and friends,
It’s just one way to keep in touch
Until this madness ends.
Amazon has got my wishes,
If only they would do the dishes,
Cause I’ve done a lot more cooking
Eat at home, no restaurant booking.
I’m grateful that I’m not alone,
My guy, my dog, the cats, my phone.
A chance to clean the house for spring,
And hope to see what time will bring.
I pray this awful thing will end
And our poor earth can start to mend.
I love this. Thank you!
Again,why are the professional "experts" so slow to acknowledge these common sense measures,I have been doing this since march in supermarkets
They should be fired!
@EmtronVenger you don't agree with the video then,prevention....?
Let's assume everyone who needs to wear a mask stays at home,great,no need for lockdown.
Because they are dumber than the dumbest
@David Liptrot They are useless against aerosolized viruses, but NOT against the droplets that viruses are attached to!
@David Liptrot My guess is that neither you or your dog are normal.
I was starting to visualize the scientists tying little masks on each hamster until John said the cage was masked, not the individual hamsters because "that would be silly"
😳🤣🙃
You do not have to imagine the hamsters and their masks any more....
twitter.com/Pinboard/status/1262013583673573376/photo/1
I had the same thought and it would have been super cute see little hamsters all wearing little masks. Bet that study would have gone viral
@@sobraine123 😄👍
Me too. There is an old photograph back in 1918 where the family masked the kitty...but seriously....hamsters in masks is a funny image.
It may be silly but so cute!🤣
All it shows is that you shouldn't stand down wind of of infected hamsters.
We're all in this psyop together.
Yupp. A psyop it certainly is
was the ebola outbreak a psyop?
was the 1968 outbreak a psyop
was the outbreak in 1917-1920 a "psyop"
jesus christ everything is "psyop" to you guys now
The is OLD news . "Peak Prosperity" channel was saying this in January.
It really should not take a "study" to figure this out.
Waiting to be "told" what to do by so called "experts" has been a big part of the problem throughout this pandemic.
We have lost the ability to THINK for ourselves. Some more than others :)
Absolutely agree 100%
And that is a very good Channel to navigate when looking for Corona virus info.
Some people only believe things if it's 'scientifically proven'. Although even the media ignores this stuff even when its corroborated by heaps of studies
Yup... I've known for years now that people in Asian nations people wear masks because they have a flu or bug and they wear the masks to stop themselves from spreading it, not to stop themselves from catching it.
This is common knowledge... why does it take an expert to inform people of this (and no doubt the same experts that said wearing masks isn't beneficial).
Dr John has been saying this for months - he’s just giving us the up-to-date proof to back up what he already knew
It's a shame they didn't test both cages with masks. I'd like to see the total infection.
That would be 33% of 15%
So 5% maximum.
Also, the "healthy hamster" rate would drop if the velocity is reduced.
That 5% would be reduced considerably, probably to virtually zero.
mathematically 5%!! ,95% protection
Based on the results, it would seem to be a mathematical progression so I am thinking it would be 1/2 of 15%..
Also I am interested in social distancing and would like to see some testing on that. Shots I have seen of students in Taiwan show them going to school, wearing masks and something to do with the feet, but not maintaining social distancing. Also, these tests had a duration of a week, that they were in proximity for that amount of time....
@@marybusch6182 Vietnam pop singer created a catchy PSA dance to air over TV showing hand washing techniques, and another country showed the importance of wearing a mask, a door greeter at stores with hand sanitizers etc. Not all of this back and forth between news outlets and politicians.
We'd rather bicker over here.
No. It's is a shame they tested on animals to discover the obvious. That is the shame. Animal testing is shameful abuse. Humans are so selfish.
For goodness sake, we are all ridiculous.
"Do unto others as you would have them do unto you."
What about the scenario when both, the infected and non infected hamsters are wearing masks, what would be the transmission rate in that case?🤔
That is actually the scenario in world where all the people would be wearing masks.
Around 80-90% less infections.
That was already calculated else where by determining how the viral load is lowered by different filter fabrics in both directions.
3 cities in Germany went from high to moderate infection rate to ZERO new infections within 2 weeks.
They'd also have to make more tiny masks
This is a really good question
@@pteppig o Belice ebay shivam meant was the result within this test . Comparing results from completely different types of tests is not really proportionate.
Mathematically it would be 0.15 x 0.33 = 5% infected so a lot less than only one group wearing masks
4:53 : now here, as you see, these are hamsters. Gotta love this man's sense of humor.
Frank Pierco I laughed so hard at that point 😂😂😂
Love his artwork !
Introduced a mate to some girls I was with once. I was like "Girls this is Geff, ...Geff these are girls!"
I also like to know if they used different masks in this experiment... Had a Santa Clause mask the same effect as a Guy Fawkes mask? And what about a Bux Bunny mask or a Donald Trump mask? They need to put a lot more money in this essential and scientific experiments... to get proper results.
@@maxmuetze9083 haha interesting - but they actually have done some research on this:-
www.cambridge.org/core/journals/disaster-medicine-and-public-health-preparedness/article/testing-the-efficacy-of-homemade-masks-would-they-protect-in-an-influenza-pandemic/0921A05A69A9419C862FA2F35F819D55
You stated that we should wear a mask to flatten the curve and not overwhelm health services. Dr. Campbell, you were converted by this one _ingenious_ study? I have heard other doctors speak critically of the suggested policy of widespread mask-wearing. They have described various risk factors that you haven't mentioned. I would be interested in hearing your understanding of how scientific consensus works, and just how many studies are required before that consensus can begin to form.
Anyone who recommends wearing a mask to protect from a virus is an idiot.
What "risk factors" are you referring to? Are you saying that wearing a mask creates a risk of some kind?
@@PikesCore24 YT didn't notify me of your comment (a recurring problem). Everything you do has risks attached, including deciding to wear or not to wear a mask. I suspect a common problem is believing that the mask will protect you in a situation where it doesn't. An infected person who sneezes in front of you is releasing a virus-filled spray that is quite capable of passing through most masks and face coverings. The N95 mask is the best one, but even it doesn't provide 100% protection. There are numerous other risks, including reduced oxygen supply, cross-contamination from touching the outside of the mask, gaps around the edges, and more. Educating yourself, and social distancing are more effective strategies.
@@johnlvs2run I disagree. There are very smart (but misguided) people who advocate wearing a face covering. The problem is the science doesn't actually support this policy at this time. It is a "strong feeling" or personal opinion of various experts that could turn out to be entirely wrong. Social distancing is a better policy, and ordinary vigilance while out among people.
@@misterlyle. SARS-CoV-2 is about 120 nanometers in diameter. The filtration efficiency of N95 masks with sodium chloride upstream propelled particles of size 120 nm can have between roughly 95% to 100% coverage of particles (multimedia.3m.com/mws/media/376179O/nanotechnology-and-respirator-use.pdf). Wearable cloth coverings vary in efficacy but still range between 80% and 100% with sodium chloride upstream propelled particle of size 120 nm at approximately the same rate of flow (pubs.acs.org/doi/10.1021/acsnano.0c03252, Figure 2 and Figure 3). Silk seems to be the best material. Nevertheless, wearable cloth coverings worn correctly, with proper procedures in place to stop cross-contamination, as Dr. Campbell suggests, are without a doubt better than nothing. The people who advocate face covering are not misguided.
Unfortunately, the enforcement of social distancing policy as you say does not seem like it will happen to full efficiency. It is very hard to make people follow such policies in the western world. We have seen in the past few days what social distancing means: Riots, picnics, and protests. Doctors are only advising the correct application of cloth based face masks to people who choose not to follow social distancing guidelines.
"They always wear masks..." and where do these virus's mostly originate? Also what about the potential for hypoxaemia and the cloth mask getting warm and moist...consequences?
CO2 build-up in your blood; not good; Doctors know the danger greater near hypoxaemia
well-meaning doctor, but there are many studies with no bias that demonstrate opposite information in this video.
Wear a mask on public transport and in shops, not difficult is it. Hardly going to cause you harm. Grow up!
That guy doesn't know. He's a nurse, and he has already drunk the kool-aid. Here's the science:
czcams.com/video/wegZJI6NvpU/video.html
@@mavis1108 I am fine with you wearing a dust mask. Don't force one on me comrade.
Finally, the hamster based content I was waiting for
😂😂
Lol, I know right. Lol!
This is truly great research on why “humans” wearing masks... wait no its not.
From Jan till now, the hesitation towards masks is staggering. Just ideological and idiotic.
Cultural norms are weird ... I'm gonna sleep for hours and hours with a fan blowing right on me.
Lockdown would be unnecessary if they admitted the trut that they were trying to confuse people to make more “contagion” and cause more “death”
@David Liptrot A little c4 might alleviate that problem.
@David Liptrot What about a blow up doll?
More death creates more fear and government benefits from that. There is also a deliberate economic destruction of weak cultures in the western world happening. It also saves on pension payouts and the lockdown recession gives an excuse for central banks to ail out the investment bankers and corporate CEOs as well as greasing the palms of government funded academia and of course big pharma. A lot of people are profiting from this debacle.
Thanks a lot and greetings from Toronto/Canada! The hamster experiment is the best to visualize what's the purpose of wearing a mask. We appreciate your videos, John!!!!
"As you can see these are hamsters. "
I love your humor.
🇺🇸 🇺🇸 🇺🇸 🇺🇸 🇺🇸 🇺🇸 🇺🇸
MASKS: Caring is Wearing
❤ ❤ ❤ ❤ ❤ ❤ ❤
We need to wear them forever. Those mutating flu viruses kill too. We need to save lives. Mask up and stay masked up.
Eileen, you nailed it! That short rhyme could be written on the mask. Understanding wearing a mask is for others and not themselves may increase voluntary compliance.
@@RichaRat We need to wear them forever. Those mutating flu viruses kill too. We need to save lives. Mask up and stay masked up
halfasheep Oh please.
"Wear a mask, it's a simple task"
Wear a mask forever. Mutating flu viruses kill.
Can't stand wearing a mask. I get lightheaded after a while.
Are you for real?
I had a chuckle of your fantastic rendering of hamsters! An artist was lost in you, well, thank you so much for all your work. Love hearing a voice very different from hysterical dooms day shouters in all this, informing me so well. Love from New Zealand!
I really wish that you were UK's medical advisor. You would have saved thousands of life Dr Campbell.
they still would not have listened to him.
far better what he's doing here on YT because more people listen to him here.
www.rnz.co.nz/news/national/408255/wuhan-coronavirus-face-masks-do-nothing-virologist
czcams.com/video/pJ8PuUrOUAY/video.html
"Wearing a MASK-its not much to ASK"..........slogan.
bernadette reilly, to simply ask it would get you nowhere as there will always be people who think they know better or this doesn’t apply to them. It has to be made mandatory. How about “No mask wearing, No tube/bus faring”. Ideally they should also place hand sanitizer dispensing stations by the entrance gates...
@@marcoroma2863 👍🏼
czcams.com/video/iPD4ctGC6v8/video.html DR.Vernon Coleman the "Social distaning".
I can see several problems with this experiment, though. For one, the masks weren't actually on the hamsters, they were on their cages. So the hamsters weren't actually coming into contact with the masks themselves. Of course it would be highly difficult to get masks on the hamsters in the first place because they would fight them and try to get them back off as much as they could. People often do the same thing because the masks irritate their skin around their nose and their mouth. So they are often touching and adjusting the masks with their hands and scratching the skin around their nose and mouth which studies have shown pretty much negate their effectiveness. When I've worn a mask for more than a few seconds my chin starts to itch terribly. I suspect this is because, as a man, I have facial hair growing all the time. Even after I've shaved, a few hours later I have stubble because my facial hair doesn't stop growing. So I can shave in the morning and by lunch time I have stubble. Put a mask on and my chin itches like crazy. I would have to shave every few hours to keep that from happening.
Another problem with the experiment is that the hamsters were kept in separate cages. To be more like a real world experiment they would have to take the infected hamsters out of their cage and let the uninfected hamsters in their cage for a while. This would be like infected people going into public places with masks on and then leaving and then uninfected people coming into the same public place later, which is more real world where people are touching the same surfaces in public places all the time. Masks aren't going to have any effect on that.
There was another experiment I saw a video on a few days ago that was interesting. In it the staff of several hospitals was divided into 2 groups--group one wore N95 masks while group 2 wore surgical masks. They wore these masks thru flu season last year. The group that wore N95 masks had about 8% contract the flu anyway, while the group that wore surgical masks had about 7% contract the flu anyway. This seems counter intuitive since N95 masks are supposedly better at filtering out smaller particles than surgical masks. In the video it was speculated that perhaps people touching and adjusting their masks because of skin irritation by them led to the higher infection rate by those wearing N95 masks because those masks were more secure on their faces and therefore irritated their facial skin more. I thought that they needed a control group who wore NO masks just to see if even wearing a mask made any difference. But of course hospital staff have to wear masks because of their job. But then I searched online to see what the average was for people in the US contracting the flu in an average flu season and was surprised to find one source that said on average about 8% of people in the US contract the flu every year. That's about the same percentage of people who contracted the flu wearing the masks in hospitals during flu season last year! Maybe they were subjected to a higher viral load because they worked in a hospital environment during flu season. But still. Hmmmm.
In other words, this study probably understates the effectiveness of wearing a properly fitted mask.
He kind of lost me at "We have to flatten the curve; so everyone must wear a mask".
The mortality risk is clear now. It is not the general population. Getting a mild infection which creates protective antibodies is not a major medical problem. This is necessary to control the duration of the pandemic. It is epidemiology 101 and called Herd Immunity!
Russell Buskirk Death is not necessarily the worst thing COVID19 does. It’s already shown it can cause long-term organ damage in even asymptomatic or mild cases.
@@gypsypath1 wheres your theory behind this and wheres a video explaing long term damage to asymptomatic victims. I would be interested to watch it.
@Yogurt Slinger because it’s not a cold. There are many cases of diabetes linked to a prior COVID-19 infection and there are several reports about neurological and organ damages caused by it. I know many doctors and nurses and I‘ve heard quite some horror stories about 30 year olds with no pre-existing conditions which were close to death and totally wrecked after a COVID-19 infection (and they work in different hospitals in different parts of the country). Just because you didn’t experience it yourself or know anyone who really suffered doesn’t mean it doesn’t exist...
perfect drawing skills John! i instantly recognized the hamsters :-)
ikr!
Excellent graphic illustration !
What kind of mask was used in the experiment?
It seems to me to be of paramount importance to know this, as a cloth mask can be a vector for infection to the wearer because of the moisture generated after a few minutes. A damp mask permits transmission through cloth, particularly if it touches the mouth. If hamsters were infected despite dry mask simulation, it would be interesting to see the result if the "mask" was damp.
I'm in the pro mask camp but it's a very good question. If some measures were taken to ensure that both the inside and outside of masks remain moisture free then this can only be a good thing. A changeable moisture absorbing layer on the inside of a mask would suffice, as well as regularly changing a moist mask for a dry one when in public. It's worth taking as many precautions as make you feel safe and it may be found to be necessary at some point - so still worth getting the answer.
They used standard surgical mask, click the link in the description, Dr. John linked the study. We promote standard surgical mask here in HK, only when we don't have it we look for alternative.
They used surgical masks, we need another study with cloth masks to see how it compares. I suspect not nearly as good but would be sure nice to know!!
cloth masks actually did better than surgical masks in stopping covid-19 in a human study www.acpjournals.org/doi/10.7326/M20-1342
In reality, the masks were beyond sneeze distance from the hamsters faces, so the materials & dampness are irrelevant as a result. All this study did was replicate the Korean call centre results, where cases were dependent on air flow in the area. Set up a fan blowing from infected to healthy & they will get sick. set up a barrier between the 2, to divert air elsewhere & they're less likely to get sick. Continuing the study to give a full week of exposure makes it useless though anyway, as incubation period can be anything from one day, so for all we know, 1 hamster got infected from a single stray droplet & then passed it on to all hte other hamsters in his cage
I guess I've had lung problems for about the last 10 years. And I feel suffocated to put a mask on. I cant breath with them on.
You should try to get a half face respirator. I have the 3m brand one. Costs about $60-$100, but fully washable & reusable, with large inlet valves & a separate outlet valve right below the nose, making it MUCH easier to breath through than regular disposable masks are. Additionally you will exhaust all CO2 with ease with those masks, while at least some will remain with the other mask types & with chronic lung problems, CO2 changes is a big issue with triggering breathing responses.
Masks in general are useless against this virus, but in your case, where you're no doubt high risk of death from it, it would be worth it to wear a proper mask that will actually protect you. Just be sure to shower fully as soon as you get home, otherwise it's pointless wearing it.
I have asthma myself, not the same as you're describing I'm sure, but I can tell you that during the Australian bushfires, where the air was full of smoke, I couldn't go outside without my mask on without gasping for air & having a severe asthma attack immediately. Inside was fine, due to air filters I have, but I found when I put the mask on inside, before going out, that it was actually easier to breath with it on than without, due to the cooling & drying effect it had on the air. That said, because I'm at risk for death from this virus (for serious auto-immune reasons), I'm wearing my mask anytime I go out & I have noticed that after being out with in on for 4-5 hours, I will find myself feeling quite tired, but when I get home & take it off & have a shower, I seem to find a new lease on life, so I think maybe the mask is reducing the amount of air I get a little.
Anyway, if your area decides on laws to make you wear a mask, the gas mask like half face respirator should resolve your suffocation feeling issues while letting you comply with the law, but given you have lung issues, I would in your case buy & wear one all the time anyway - if you can find one to buy of course!
Good luck with it all anyway :)
The half respirator ones are the way to go! My kids and I have asthma. My mother in law has COPD. Waiting for sites to open for preorders at the moment. Having everything delivered and not go out until we can be protected with better masks since we are compromised.
@@PsychoPants69 _"Waiting for sites to open for preorders at the moment."_ dam! Where's that? Any potential to get them off ebay or anywhere? They're back in stock at my local bunnings (hardware store) now so they're certainly not out of stock completely globally, not sure if it's differing from country to country (I guess it would be at least to some extent, but I'm not sure how much)
If you have a store that usually stocks them, try giving them a call & see if they have any options to order them in for you. My local bunnings sells medium size masks, but women generally need small not medium, for kids even small's really going to be too big, anyway, ordering in the small size has actually been uninterrupted the entire pandemic here, stock was racing off the shelves, but because the small size was a "special order" they weren't really being shipped out anywhere, just sitting at the 3m warehouse, available for those that actually needed them & knew where to look for them, so see if there's any options like that where you are. Try all industrial manufacturing & painting related stores too, as those masks are used in any workplace environment where there's chemicals in use, from chemical manufacture to painting to welding to furniture restoration, anything you can think of with fumes, will have those masks. A lot of dust environments have them too, from sanding to gardening with potting mix & mulch to operating chain saws, so any stores selling to anyone working in any of these industries is a possible source for you. Good luck!
Good recommendation, Thanks!
Mask wearing is uncommon in the UK because for the last 3 months everyone has been told masks don’t work! 🙄
They don't
headrat1 Let JAMA know 👍🏻
And the Brits are absolutely correct--> www.lewrockwell.com/2020/05/no_author/masks-are-there-benefits-or-just-a-comfort-prop-let-the-facts-speak/
*Mask wearing is uncommon in the UK because for the last few months the government has been told us that we have a huge masks shortage!* .
Numbers putting here as flattend curve is just because of LOCKDOWN not by wearing masks .
Wouldn't wearing a mask, if not prevent infection, at the very least reduce the viral load one would otherwise inhale without a mask?
That's the point. It has a large impact on how fast an infection could progress.
So, with 60-70% less viral load, would make the difference between "stay at home" and " ventilator"
I think the good doctor mentioned reduced viral load of mask wearing in the vid
@@freebirdh604 Yes, he did and he also indicated that in your own home it is not necessary nor is it necessary outside because of the air circulation. He also said windows should be open do decrease the viral load in the atmosphere. This is a real problem in most of our buildings now.
@David Liptrot the SARS-COV-2 virus is highly contagious and lethal. It's airborne and spread by particulate and aerosolized droplets. So a well fitting mask is essential. The whole point is to filter the air one breathes so as not to breathe in virus.
Surgeon's masks are designed to keep the surgeon's spittle and sweat inside the mask and out of the patient's open wound during surgery. Surgeon's masks are designed with an air gap on sides that would let unfiltered air in. So there is a big difference between types of masks and the effectiveness of masks in preventing airborne infection.
At this point the idea is to try and get people to wear masks so asymptomatic carriers and symptomatic carriers of COVID-19 do not spread their virus particles to others. I frankly think it would be a lot more effective to just tell the truth to the public and say " Hey we are dealing with a highly contagious and lethal AIRBORNE virus that isn't going away anytime soon. " But the government knows there are not enough P95 masks and doesn't want people to panic. So they are not being direct and to the point. I wonder how many people would resist mask wearing if they knew the truth.
I have been wearing a respirator, eye Protection and gloves in public since January 2020.( I refinish furniture for a hobby. )I got a lot of criticism for it. Now I personally know 18 people who have died of COVID-19. Tried to warn people. They didn't listen. It's very sad. I'll be wear my PPEs in public for many years to come. I am sending love and hugs from Washington State, USA, Jeanne of In Loving Hands Counseling and ASMR.
@Andrew Ongais animals and humans. Any barrier helps
"Wear a mask, that''s all we ask!"
"Wear masks forever, flu viruses kill too, we need to be clever"
There is scientific evidence that proves wearing a football helmet whenever you are in a car saves life. That doesn't mean we should wear helmets in cars.
Haha exactly
On the contrary it proofs we should. Absence of logic.Different matter that we cannot bother.Racing cyclists for years never wore helmets but now complusary.Motor Bike?
@Yogurt Slinger So wearing a helmet gets you into more accidents, so does a skydiver without a parachute do more jumps than one with.?
Anyone remember the old milk ads:
"Got mask?"
Or
"Use your head,
Slow the spread"
good stuff!
Actually, no, we have to make them. Unlike Milk.
are you a hamster?
Why didn`t they do a trial where both cages were masked?
On the back of this information I have now made my hamster a mask.
😄
If you wanna Last Wear A Mask.
I'd love to hear the percentage differences of handwashing.
If he hadn’t underlined those numbers I would’ve never understood what he’s talking about
Said it before and I'll say it again - Taiwan never locked down (cinemas, cafes, etc. all open) and has the grand total of 7 deaths from 441 cases. It's not just the masks, they are just one of the tools used, but they have certainly helped.
HK has 1029 cases and 4 deaths. We all wear masks from day 1.
@@oskartang9797 As an American who's been wearing an Asian-designed plain black mask for months now .. I have really come to like the look of it.
To answer your question, "Why aren't we doing it?" it's because the experts told us that wearing a mask was pointless and even possibly dangerous.
Their reasoning was that (i) the mask could become contaminated and then infect people and (ii) most people are too stupid to learn how to wear a mask. They were, of course, wrong on both counts.
(i) if the mask is covered in virus particles, they're not out in the air.
* If they are on the inside of the mask, I haven't projected them out to infect others.
* If they're on the outside of the mask, I haven't breathed them in to infect myself.
(ii) people are NOT stupid. We might not all be professors and leading experts, but we could learn how to don and doff a mask safely within 10 minutes or less. We are also smart enough to realise that wearing a mask doesn't make us immortal; we need to take all the other precautions as well. How patronising are our ruling and intellectual elite?
I'm not a doctor, I'm a physicist, and I know absolutely that wearing a mask makes perfect sense.
My own belief, for what it's worth, is that the Government should:
a) publish a pattern that could be made by any competent sewing machine owner who could make them for self and neighbours.
b) make a short instructional video on how to wear a mask properly and how to care for it properly.
But they won't!
plus it must be added that there was a shortage of masks and they were trying to put us off buying them I think to conserve them for the hospitals
I mentioned masks in February and was shouted down by everyone, loudest by the teacher. The three immigrants in my class, working in hospitals, were quiet and looking uncomfortable... especially the Asian nurse.
These "experts" are not qualified as experts because they don't have common sense.
A 0.1 micron mask worn correctly , makes it logically impossible to get infected.
IMHO, none of these reasons matter. Many people in the US aren't wearing masks for ideological reasons, not based on any consideration of facts or science.
Also... Some percentage of the population IS stupid. Whether health advice should be modified to account for this is the question. I'd say NO -- give the best advice possible, even knowing that some will misinterpret it and suffer negative consequences. I wish the authorities had said up front that "N95 masks would be beneficial for the general public, but there aren't enough to go around, so only medical workers are allowed to get them" and "a cloth mask provides you with some protection, but it's really intended to protect other people from you".
I wish it could be mandated here in the USA. There are so many who refuse, and call it their "right" not to wear a mask. :(
Hi Dr John, I’m so thankful that I finally heard how convinced you are now to advise for everyone to wear masks. I still remember months ago that there was a little hesitation in your voice when you talk about masks wearing. Grateful for you & for all your research/studies as always! Stay safe! ❣️
How silly do you look now.
i dont get it why some nations dont make it mandatory to wear masks? Have that here in Germany for public transport and shopping, I think thats the best idea to open most things and control the virus.
the only thing that needs control is governments with their agenda of control
My government here in holland sold off its supply of masks to china in the beginning of the outbreak, ive been using masks when i have to buy food for 2 months now. I am glad i finally have some protection aswell if i go to germany to go shopping.
because we are stupid
In Uk they will probably make masks in shops etc mandatory in about another 3 or 4 weeks if past performance is anything to go by,everything is done 3-4 weeks too late and along time after the rest of the world our "science "is a joke .
American here. Our problem is we have these crazy people who only believe in conspiracy theories. They all belong to trump, their cult leader.
Also thanks to face masks we have already back normal life here in Slovakia. I am so happy!
Fully normal?
@@vikkirichards4563 Slovakia has no deaths from Covid-19 and only 1 new case.
@@vikkirichards4563 opened now shops, shoping centers, cinemas etc. almost fully normal life. Now we have 28deaths, 1503 total cases, 219 active case. Today was only 1 new case. Last weeks its about 0 - 6 cases every day.
Edinburgh University did a fantastic study months ago and the results were fantastic!! They tested a range of different masks and fabrics and everyone showed great rates of protection. I immediately bought a small amount of masks for my family and found out how we could effectively and safely rotate them, so they could be reworn many more times than they normally would.
We were amongst the first to use them locally and worried about it simply because we were told by Government, we would be talking those masks away from frontline staff. I thought it was unlikely the seller l bought from on ebay, would be approached by my Government to supply masks for our hospitals. So we soon got over those concerns and none of us leave the house without one anymore.
An excellent video Dr Campbell. I must admit to having a real giggle at your unedited "Masks" rhyming slogan. Keep healthy and...wear masks for public tasks!
What's striking me is that we've become so detached from reality that even the most obvious common-sense findings like those ones are a surprise to us.
Only to some.
...The entire thing is BS .
I had a conversation with someone who is literally a registered nurse who doesn't think masks do anything. Its frustrating.
These are not “common sense.” Common sense tells us that if mask wear were so advantageous, we (or certainly other species) would have developed organic protective masks through evolutionary processes. It is not common sense to breathe your own breath.
@@analogyformerlysecularhere5713 Thank you
I love this so much. This is far and away Dr John's best video to date. However I remain slightly disappointed that the hamsters were not wearing tiny, perfectly fitted masks.
But does wearing mask weaken the immune system or increase viral load of the infected?
Club 88 ......yes , it does ..I don't wear one and I'm 77 ...if you are visibly sick , stay away from everyone ..otherwise just use common sense ...
Only if you believe discredited scientists who were never very recognized in their field, who have been jailed for stealing from her employers, and was all about creating vaccines until it suited her not to be.
www.businessinsider.com/what-plandemic-movie-got-wrong-about-coronavirus-vaccines-2020-5
@@denisehenderson4875 Judy Mikovits does a point by point debunk of the business insider piece I think on London Real. The so called plandemic debunk falls down with only a cursory glance when it claims vaccines have saved and not killed millions, even Bill Gates himself says that the vaccine companies would need to be indemnified for covid 19 due to the 770,000 that would die as a result. The efficacy and safety of vaccines have never truly been tested and Judy Mikovits is not the only one to make the claims she has made concerning this virus.
@@sueeason275 Up to 25% of the population can be Asymptomatic or Pre-syptomatic at any one time and therefore spread the virus. >>> Everyone wearing a face covering Rate of transmission goes down by 95% mathematically speaking.
It is a shame that they didn't do a test of masking both cages. I would imagine the infection rate would be even lower if masking both cages.
This video should be forced watching for all UK MP's.
Maybe then they would realise the errors of their actions.
I won't hold my breath though.
I think PHE and the UK Government were fully aware that masks massively reduced the rate of infection, it is simple science after all (we all know condoms work!). The problem is they didn’t have enough stocks for NHS staff let alone the public and they didn’t want to people to panic buy the absolute PPE from suppliers.
When I go to a store its my choice to do so.
The people who work there have no or little choice in the matter!
If my wearing a mask when I decide to go there, makes them safer.
That's enough for me, ill wear a mask.
We all need to wear masks forever. The mutating flu viruses can kill, so lets never stop. Masks prevent deaths.
halfasheep 🤣🤣
Yes, because our chinese, mask wearing cousins managed to quell the spread with their consistent wearing of masks......
Wish a lot of people were as kind and had as much common sense as you.
Pinak Kapadia but if you don’t wash them constantly or purchase mass amounts it won’t work oh and you can’t wear any of them for long periods of time.. so there is always that
Instead of the invasive swab, why don't people just breathe on it
I am from Hong Kong. When we had our first Covid-19 case end Jan this year, all people in HK started to wear face mask. Of course masks ran out very quickly and a lot of people including myself had to buy online from other countries. The result - 1066 cases up to now (26 May) with plenty of cases coming from people returning home from overseas. Westerners should start learning why wearing face mask is effective in controlling the spread of viral disease. Also should not have any bias towards Asians wearing masks in your countries.
In Malaysia too. We have a few thousand cases over 100 deaths so far under control. Everybody wear masks even though not compulsory but still people here are strong believers of masks. Even the garbage men wear them absolutely correctly. For a period of time masks were out of stocks due to profiteering until our government controlled the price of masks. Now nobody can profit from it we can get easily in stores. You can't tell that to westerners because they are too proud to believe in anything.
@@cy4330 They think they are clever than others.
Thought this was appropriate!
"Cover your face, save the human race!!"
Cover your face to save the human race...
Driving to the supermarket in Kingston, UK yesterday, I was saddened to see more than a dozen people get off the bus at the bus stop in front of me - only ONE was wearing a mask. The government made a huge blunder regarding mask wearing and stupidly claimed they could be dangerous rather than helpful, because people "don't know how to wear them".
I feel UK policy was dictated by mask stocks. No good telling everyone to wear a mask if you dont have a mask to give them. I live in Luxembourg and we got 5 surgical masks each in our letter boxes about 3 weeks ago. We can collect another 50 per adult in the coming days from a local drive through collection point in exchange for a letter we were sent. We were also advised to use anything to cover our faces (like a scarf or bandana). School kids are back to school doing 50% week on week off rotation. They each received 2 tight fabric tubes to wear over their faces like a snood/buff. Wear one, wash one each day. They were designed, ordered and delivered in the last weeks. It can be done with the right planning and resources.
@@ecoworrier absolutely right.
I'm using the "snood" method.
I'm also using a HEPA filter cut from a "Henry" vacuum bag inside the elastic, held in place with crocodile clips.
The HEPA standard is effectively the same filter as N95.
Works well.
Yep, I'm out working and rarely see anyone wearing a mask.
Lol, I’ve got visions of people putting masks on like a headband and not where they should be....maybe masks should come with instructions? Lol
Stay home.
Very few people in Northern Nevada are bothering to wear a mask or social distancing. I wear a P100 mask anytime I go into a building with people, my mindset is that everyone is infected and act accordingly.
i made my hamster a mask but he just kept chewing through it.
Mask’et to avoid a casket 👍🏻 From Cape Town, South Africa
Riaan Conradie put that on a mask and sell them along with a T shirt.
@Miss Information Misinformation, indeed! If wearing a mask is deadly for you, then please protect yourself by staying home. Let the rest of us wear masks out in public, to cautiously/safely get things rolling again.
Patricia Morgan yes
Miss Information misinformation is dangerous now. Can you hold on until it’s just politics ?
"Our prudent task is to wear a mask"
Good one
Mutating flu viruses kill. Forever shall we wear masks.
Small point. The lady who was responsible for the JAMA study is called Lydia, not Linda, Bourouiba as expressed in the video.
1:24 I think the flaw in this argument is the assumption that the distances listed by JAMA are fixed, when they depend to a great extent on the amount of circulation in the space. Another faulty assumption is that getting exposed to any virus at all would be a catastrophe when the truth is that the vast majority of people who acquire immunity (20% of NYC residents) are never seriously ill, so avoiding the virus altogether is not only unrealistic for most people, it it will put off herd immunity and force us to live in this siege environment for even longer. I can see requiring masks on sealed subway cars and buses, but if you can walk through the supermarket keeping a 6 foot distance most of the time and keeping your mouth shut most of the time, you won't be a threat to anyone. Meanwhile, masks are terrible for the people who use them, starving the body of oxygen, raising blood pressure and re-introducing the bacteria, fungus, mold and viruses that the lungs are trying to expel, so they should be worn only when absolutely needed. And, finally, I have to ask, why are the public transportation vehicles still running in so many places with all the windows sealed? The first response to this virus should have been to replace windows with screens and grates in as many normally sealed spaces as possible, including vehicles, bars and shops; dealing with the cold would be far healthier than wearing little petri dishes on our faces all day. Note that the following story covers not only a collapsed lung, but 3 deaths in addition to that, although the conditions that led to this were far more extreme than a trip to the store. There was also a woman in NJ who passed out behind the wheel after driving with a mask for a number of hours.
www.dailymail.co.uk/news/article-8311179/Joggers-lung-collapses-ran-2-5-miles-wearing-face-mask.html
czcams.com/video/OUUOq1ksiQQ/video.html
Completely agree with the windows problem. I was ranting about that long before COVID. How asinine, truly! And it’s not only buses, it’s all the new buildings with air ducts instead of open windows, especially in educational institutions and offices. How was that ever legal, never mind thought of as good practice by engineers?
Can anybody explain/guess why our authorities seem reluctant to even play catch-up with best practice around the world (testing, zinc, vitamins, masks, etc). Our system seems designed to maximise economic disruption/mental health problems/mortality - bring on the conspiracy theories. Tens of thousands of lives could have been saved and based on current performance, we may have to go through it all again next winter.
Because nearly all politicians are incompetent and only listen to pharma lobbyists instead of doctors.
Billions for a vaccine that will be ready when the flu is gone. Like the last 2 times. and later a cushy job at that company.
In short, no I can’t, I cannot even think of a secret agenda that might explain it. The only conclusion I arrived at is gross incompetence and they should be held accountable for gross man slaughter. Apologies! I’m just getting more and more frustrated with our UK government the more I understand about the virus.
In short, China bought them.
Most political leaders are narcissistic psychopaths. They don't like to be 'wrong'. So they stick to their former stands.
Michael Harrison Simple. Because they’re stupid.
Here’s a rhyme for you to use John: “A mask a day, keeps the Covid away.”
Steve Blake A mask a week, keeps the virus weak?
If you only ever go out once a wee now XD
@@Roadent1241 "a month of masks , is a blast"
"a year of wear, it will be nowhere"
"a decade of masks, is decadence"
"A century of caring is over-wearing!"
Good Lord, Man! It's worse than we thought! MIT's study says a sneeze travels 200 FEET!
Thank you Dr. Campbell. You are a magnificent human being. God richly bless you. Jose F. Lopez, MBA, FCCI
I hope that more people here in the U.K. do wear masks...if everyone was to wear one it would greatly reduce the spread
Not worth it.
Destroy a fundamental part of our culture, for a disease that has, ultimately, been as bad as a bad flu season?
No thanks.
Life is about balancing risks, costs and benefits. What's the point of saving a few lives of everyone who's left is worse off?
"We should not have fought Nazism, because people died."
No. No. No.
I don't see it happening here (UK) without politicians and media leading by example and with a huge public awareness campaign at the same time.
Thank you Dr John, wearing mask should become a common practice for flu and colds as well in the UK
Yes, flu viruses can kill. Mask wearing needs to happen forever. Everyone masked up all of the time.
@@channel1_channel troll
@@hcox1111 It is logic. Never stop wearing masks. Care about others.
@@channel1_channelmy weak lungs can’t do that
Sorry not sorry :D😅
“Excellent diagram” 😂🤣😂 I’m dead 😵 from laughter
You'll be dead if you keep wearing those dangerous, toxic, ineffective face-diaper-masks. Here's the real science:
czcams.com/video/wegZJI6NvpU/video.html
Make it, wear it, mask it , makes us stronger! (Daftpunk!!)
My question is: Why did I, a lay person, know this back in February? Started wearing a mask religiously, even though people stared at me thinking I was sick ?
It's a simple, most primitive law of physics.
probably because you have chinese (or asian in general ) neighbour or co-woker.
Everyone knew this, its simple science that doesn’t need hamsters to be infected to be proved! We all know condoms work. The reason the authorities didn’t mandate it is because they never had enough stocks to protect the healthcare workers and if they’d have told everyone to wear masks, people would have stockpiled and put healthcare supplies at risk.
@@WXRBL666 No, but I'm of Russian descent, slightly OCD due to gymnastics training. I don't know, I took this VERY seriously from day 1. I follow all quaranteening /disinfecting religiously. It doesn't really cost anything. THE RESULT: I'm in NYC, one of the worst clusters in the world. I still run around outside almost every day for hours: street, stores, busses, subways. I just tested NEG for antibodies. I am fully prepared to be self-sustainable for months ahead in case something happens. Again, it doesn't really cost anything, but gives me a great peace of mind.
Why Russian descent is important here: family went thru WWII and other horrors of soviet regime. Was hungry, sick, depressed growing up a lot. Therefore like to be prepared for any troubles that may arise. It's in my DNA.
Most of us who wTch alternative media were ready in Feb.
You are sick in the head!
You missed something hilarious about the picture of Kim in Virginia. There's a mask made of the same fabric over the sound hole of the violin. X-D
And over the strings too. The holes are called f-holes, by the way.
Yep! And I also was like, eh hm, Dr John, You didn’t address that wonderfully furry kitty in the other photo! I mean that cat was pawsome!
got the joke - nice!
Yes, it's true. People have been marginalized to the likes of hamsters in a cage. No mention of the human studies that arrive at the opposite conclusion? Wouldn't a doctor know better?
This is were Boris and Hancock messed up, gave this advice too late during the pandemic. The thing is as the weeks are going by, less people are wearing masks in shops and on transport, so potential second peak on the way.
I would have liked to see one more experiment where the outgoing air was filtered as well as the incoming air to the hamsters.
czcams.com/video/wegZJI6NvpU/video.html
This has been the most logical fact since day 1. They wore them in the Spanish flu they wore them for Sars. I think they even wore them for the black plague back in the day. China made them mandatory in Wuhan. Numerous other countries have made them mandatory for covid. In my country Australia the chief medical officer for our country said they did not work for the public and this is still the statement that exists on the national broadcaster ABC website. Also by the way there have been other studies from the past saying exactly the same as this study.
Definitely agree. Needs to be mandated. A lot of the Mericans here refuse to listen to the science and think it's a fear thing.
Time to put a mask on every bat.....and every bird, animal, fish and reptile!
"Wear a Mask is all I ask. Keeping your distance will ensure my existence"
Phillip van Niekerk Changing “my” to “our” sounds better and is more friendly - IMHO. Love the phrase though.
Wear masks forever. Flu viruses can kill. They mutate!
I wonder what the infection rate is if BOTH cages have protection? Is it even lower than if only the infected hamsters were protected? (Why we should ALL be wearing them).
Worst case
33% of 15%, 5%
Five months later, EU is now being being forced to obey the rule of law otherwise be physically be removed!😂😂😂😂😂😂😂😂😂
I think the chance of being infected and being asymptomatic (and/or denying symptoms) is much, much higher than 50%. It's probably closer to 95%.
Not wearing a mask when among others is the new farting in public.
At least farting creates social distancing?
We need to wear mask forever. Mutating flu viruses kill. It has to stop. Mask up and stay masked up for life!
I used to cough loudly to prevent people hearing me fart.
Now I fart loudly to prevent people hearing me cough.
Did anyone else notice that people who put NHS stickers up their windows and clap on Thursdays are the same people who don't wear mask, don't do social distancing and break lockdown regulations?
you are very good at putting all people in the same box.
And voted for Brexit and failed to keep out the Conservatives again. Unless you voted against the Tories, you have to take the blame. They cut the NHS to ribbons.
Better get face mask police onto them
@David Liptrot The lockdown was to protect HNS being overwhelmed. If it wasn't so, people would have started a revolution and thrown Johnson and most ministers over the cliff. HAD the lockdown been done to protect the people, it would have started WEEKS earlier with increased testing and tracing as WHO advised... itself too late to react..
I would love to see masks becoming mandatory in enclosed public places beyond this pandemic...., doctors’ offices, supermarkets, stores, etc..it’s called having respect for the health of others. At the very least, if you knowingly go out sick, wear a mask...period. If Nike made a tee shirt to advocate, I’d wear it..”Just Do It!”
If you mean that the infection RATES of the hamsters went down a certain amount, the infection RATE would be more than 400 percent higher for no masks vs. masks on the infected. Not 50%. 66/15.
Wearing a mask, such an easy task.... (My entry for the rhyme)
Save lives. Wear them forever. Mutating flu viruses kill too.
@@channel1_channel I'm still waiting for the punchline.
wearing a mask, not difficult concept to grasp!
interesting results re hamsters... did they not try both cages masked with infected in one and uninfected in the other? would be interesting to see how much infection there would be there in the healthy hamsters because at the moment they have one or the other covered or neither covered.
@@charleslindsey6789 Wear masks forever, this is clever.
Looks like we need to mask our pet hamsters then to lower this R0. ;)
czcams.com/video/wegZJI6NvpU/video.html
Imagine if BOTH cages had masks!!! while our US president still refuses to wear a mask....
"Should I or shouldn't I?
Don't ask - wear a mask!"
"No need to ask, just wear a mask"
"My mask is your mask" - Okay that one could go wrong I suppose maybe "My mask covers you - your mask covers me"
Thank you so much for your calm, honest and insightful daily updates.
.....For only sick people ....they are spreading fear , which is more dangerous than a virus to a healthy person .