Influenza (The Flu)
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- čas přidán 9. 07. 2024
- We've all heard of the flu, and probably know that it is associated with a particular virus. What is the structure of this virus? How is it transmitted? What steps do we have in place in terms of treatment and prevention? The flu is actually no joke, lots of people die from influenza every year, so let's get a closer look now!
Script by Kellie Vinal
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Dave the reason for the name "Spanish Flu" is because Spain finally confirmed the flu when other nations (USA, France, etc) would not. Spain was a neutral country during World War 1.
Interesting!
@@ProfessorDaveExplains Can you also debunk the karen asses?
Zaire Ebola Virus he doesn’t want to be a debunking channel, so no
@@belgiumball2308 YES
You're my hero 0:25 Kansas
Love your videos Dave! Very informative and inspirational to take general scientific knowledge to the next level.
Thanks again Dave. Good information is always grateful.
Thank you dave currently studying nursing and this has helped me a lot .
Great work, Professor Dave. Started following your channel about 6 months ago and haven't missed a new post yet. It's been fun going back to some of your older stuff, as well as checking out your earlier music career. The montage of the various Mario Bros. songs on the piano (for the kids?) was a lot of fun to watch.
I already knew alot of this but thanks for better solidifying my understanding ✌✌
Nice explanation sir! Thank you
excellent presentation !! thank you so much.
Your vids are SO clear and educational. Thanks again Dave
It is also sometimes fun
I dont get it.
Videos like this one that helps people out the most, very useful and can broaden people's understanding of current diseases and knowledge, gets so little views.
I wish more people in this world was more inteligent and receptive of science instead of only watching videos that either cause polerization or about a topic where they can feel "superior".
Keep up the good work Dave.
There is a reason the average term exists, average intelligence people continually watch those minuscule and nigh irrelevant topics while rarely focusing on important informative things like these. True above average people in intelligence are capable of reaching out and gaining information. To get knowledge you must eliminate or at least suppress obstacles masking information. Those videos gain views and pop up in your feed to mask informative videos like these
Nice explanation sir.Thank you.
amazing video, thank you!
Please anyone help me .. i just need gernal researchwork on influenza virus.. am not able to find out
Just loved it Professor 🤎
Hey is there any update with "Dr." Kent hovind? I cant seem to find his response video on your channel. If there is can someone direct it to me thank!
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Hi Professor Dave Explains, when they make flu vaccines, what part or parts of the flu virus(es) specifically are they putting into the vaccines? I keep coming hearing they are adding strains of what they figure will show up most, but I don't know precisely what is meant by strains. I would assume this means that they are putting small amounts of the whole of a virus molecule, comprising the protein spikes, sphere and RNA within. Is that what is meant by a strain?
Thank you.
Fantastic video!!!
It's a great video, but I'd like to point out that there's a little mistake in the viral structure: what you called "capsid" is actually a protein matrix (the inner layer of the envelope). Influenza A has a nucleocapsid, thus the "capsid" arrow should point to the proteins surrounding the RNA.
Hey professor, I'm looking for some good biochemistry books can you give me some names I'm beginner
Awesome Video!
Amazing video!
What causes the virus to mutate?
Mutations are the result of mutagens and chance replicative errors, but they are selected for by natural selection, same as with all other biological systems.
Hey, Dave, what is the difference between the three classes of the flu? (Influenza A,B,C) I've tried finding difference sources but some are a little confusing in their explinations.
Difference is: all 3 cause the flu. Type-A can infect a wide variety of animal hosts. Type-B can only infect humans. Type-C also can only infect humans but type-C causes much less severe symptoms on average.
Wonderful presentationnnnnnnm
Please tell me how the pneumonia related to influenza i mean i am confuse in the segment transmission of influenza
Think of your immune system in terms of = _"stimulus -----> reaction."_ In other words your immune system reacts to stimuli and it throws its' focus upon = the strongest stimulus at the time. This means the more severe the infection the more your immune system focuses upon fighting off that infection.
Yet within you are loads of microorganisms - some good and some bad. The bad ones are usually kept in check by your immune system + by the good ones who are waging a constant war against each other.
As an example. Your intestines contain E-Coli - which is bad being pathogenic. Yet your intestines are also full of good bacteria which helps you to digest your food. So they along with your immune system = keep the E-Coli in check - usually. If the balance is broken and E-Coli replicate out of your control you can end up sick.
Moral: for some if they catch the Flu it might tax their immune system to the point that other _"opportunistic"_ organisms get a foothold because of above. Your immune system being focused solely upon fighting off Influenza allows them to get a foothold. When this occurs it is considered as _"secondary infection"_ as the video alludes.
Most folks actually die - not from the Influenza per se - but from secondary infections. Fighting off Influenza weakened them to the point that pathogenic organisms - either already within them or for which they were subsequently exposed while sick with the Flu are able to replicate out of control. As Influenza affects the respiratory system + pneumonias are respiratory infections = pneumonia is a possible deadly side effect of the Flu - either viral or bacterial.
Thanks you so much
So with other words, the Plague doctors was on the right track but did not identify the right way of the spread. A mask that cover the whole face, stuffed with things that suck up moist, then cover body with a hoodie that cover the head and neck area too, then gloves and boots, that almost sounds how I want to dress when I go to the store. Like a face mask that cover mouth and nose and have filters I can replace, some swim goggles (behind some shades), and latex gloves; and then when I come home use something that almost is like the Miasma theory by washing hands 30 to 40 seconds two times in soap that make my hands smell like roses and lavendel.
Nicely lecturer
I had the influenza A couple weeks ago. I thought i was going to die for 3 days i felt horrible mainly at night. Thank god i git better but u still have chest pain an get a cough that makes mucus with little coffee grains. I also quit smoking cigarettes when i git sick so im sure it might be my lungs getting clean.
I have a curious question, during the pandemic I hardly heard of flu cases.
Bc people are social distancing and wearing masks, also washing hands! Amazing!
*"Ortho-myxo-viridae"* sounds like a sick euro EDM DJ....pun intended.
thanks prof
Thank you
Just to be sure; "Virus A", "Virus B" around 6:25 or so do not correspond to "Influenza A" and "Influenza B", right?
Correct, no correlation.
Does the covid-19 virus also have a segmented RNA genome?
It's an RNA virus, yes.
I had a little birdie her name was enza
I opened the window and influenza
I thought you said that the only human transmissible versions are H1, H2, and H3...but that the Avian Flu was H5N1. Minute: 3:20
Did I misunderstand?
Almost. He said H1, H2, H3 *AND* N1, N2 were human transmissible. As H5N1 has the N1, it was human transmissible.
Go Dave! Teach more no matter how hard the flat earthers try!
Amazing🥰🥰
I have a possibly stupid question. Are viruses actual living animals? Because they seem to function in a way that seems more like a machine than a living organism.
They're not considered alive, even though they can be killed. Viruses are in a sort of "grey" area between clearly not alive and clearly alive, but they cannot reproduce on their own and they don't maintain internal homeostasis, two of the most important requirements for something to be alive.
When you talk about this during Coronavirus....
By talking about the flu and not talking about coronavirus he leaves the politics that have been built up around it out of the conversation. Many of the thing in this video will have parallels with the coronavirus, granted it would be nice to have a video on SARs and MERs coronaviruses to help explain the current virus.
Sir daily put one organic chemistry mechanism
I am 85 years old. I tested negative at the Dr. office for the flu. But specimen sent to lab indicated Influenza A. Can’t recall ever being this sick. Most symptoms are almost gone, but general weakness keeps me close to the couch. I did get the flu vaccine in early November. I’ve also had all Covid shots to date. So my question is..did the vaccine protect me at all? And how did I get a negative result at Dr. office but positive from the lab? Please clarify my confusion. Thx.
Think _"a rich man and his guards."_ In response to infectious microorganisms etc. your immune system reacts in several ways. One of the ways is by producing _"antibodies."_ Antibodies are proteins which mirror segments of other proteins/peptides such as make up the surface of an infectious pathogen. These structures on the viral capsid are termed as = _"antigens."_
So depending upon the severity of the exposure your body generates a corresponding number of IgG specific antibodies. These upon encountering the virus in the bloodstream attach to those antigen receptors on the surface of the virus _"inactivating"_ it - meaning it can not attach to your cells to infect them and replicate itself.
Yet as the video speaks to some viruses - especially _"zoonotic ones"_ - mutate as they spread. Enough mutation of those antigen structures and antibodies generated against previous versions might no longer match up well and neutralization will not occur. This is what the video referred to as _"antigenic drift."_
Moral: Flu vaccines - and vaccines in general - _"pre-stimulate"_ your immune system to produce antibodies. Yet annual Flu vaccines must choose early in the year what strains they will contain based upon analysis of spread of variants of Influenza in the world. It takes months to produce enough vaccine for a coming Flu season = months during which those circulating strains might alter themselves a bit. Thus by the time Flu season comes around it is possible the strains in the vaccine have changed a bit in the interim.
Also sometimes a virus mutates in a manner which allows it to generate a higher _"viral load"_ than before - like Covid. More viruses mean you need more antibodies to neutralize - or "guards for our rich man." This is the concept behind booster shots which stimulate your immune system to generate even more antibodies to keep your levels up.
Then if exposed you hopefully will not become sick - but even if you do you should end up less ill than you might otherwise be if unvaccinated. Because you will already have antibodies on board your viral load should be less which means you develop milder symptoms.
p.s. - _"quickie"_ tests in a doctor's office or whatever are just for general screening. They can give the physician additional verification for what they suspect based upon your symptomatology. Serological assay (lab tests) are always the most accurate. They however obviously take longer and are more expensive.
A doctor will already based upon your symptoms have an idea of what they are looking at. They order testing = to confirm that. Try not to get hung up on "tests" - quickie or assay. They are in most cases a general screening tool is all.
to be more accurate "antibiotics only work on bacteria, not viruses"
The matter has been explained too nicely to be understood even by a layman.
Who’s here because they have the flu 🥲
Great
Good
Nice.
Recovering from Flu A now. 2 days of hell but feeling better now. No doubt the vaccine limited the severity
👍but vaccin name and explanation pliz
I have the flu now and have had COVID a few months ago the flu is much worse for me
Nice
😊
Are viruses living or non living?
non-living
Thinking this and COVID are the same thing... What a misconception.
❤️❤️❤️
♥️♥️
I wonder if millions of rotting carcasses from WWI might have had something to do with it. 🤷🏻♂️
Hay.
You should go beyond WIKI level stuff during a related pandemic. N & H have very, very important technical issues you missed and people should know.
EG: N is vital to disrupting the intracellular matrix.
I know, sounds pedantic. It’s not. People need to understand how coronavirus is different.
This is not about coronavirus. This is about influenza. I planned this microbiology/infectious diseases playlist long before the pandemic.
spanish flu
Can you debate Dr. Andrew Kaufman? He says viruses do not exist.
You can't "debate" something that is not up for debate. Viruses exist. Kaufman is a psychiatrist. He's a fraud. Stop listening to frauds.
@@ProfessorDaveExplains that was easy to brush off why not debate him and show us that he is wrong he is saying many things but I can't see a professional debunking him
Virology exists. Virologists study viruses. That is their job. Their mere existence debunks what this tool is saying. We can literally see viruses in electron microscopes. Stop being contrarian for no reason and learn science.
@@ProfessorDaveExplains I guess it's like debating a flat-earther though. It's beyond clear the earth is not flat, yet people still believe it and have debates on it. Great video though by the way
@@ProfessorDaveExplains i believe you, professor it just that I find it kinda shame that no expert doctor or professor is speaking up against this conspiracy community may it be Kauffman or Icke without not doing this these crazy guys get more followers and more attention
Which is gonna result in more infected people I never saw the tough questions asked form the experts to those guys
I don't really understand the whole issue with the Spanish Flu name. Like, yeah its not 100% factually accurate because Spain was simply the first to admit it struck their country but... its just a name. Just like how the West Nile Virus is just a name. Nobody is going around saying "damn those Spaniards, always getting sick n shit, why can't they be more like Portugal- the *better* Iberians" or anything else stupid like that. I just... I don't see the controversy that evidently exists.
There's no issue. It's just an interesting fact. It's as silly as calling the COVID-19 virus the "China Virus."
Hi.
Second ❤️
#MedicalsystemImmanentrequest #PhilosophyorPoliticsMistakes
Don't worry, we have a vaccine, but herd immunity hasn't been achived because of anti vaccers, actually!
The flu shot is not a guarantee that the recipient will not catch the flu. They have no way of immunizing against undiagnosed mutations. Flu vaccination effectively works in approximately about half of the healthy adults under the age of 65, that are vaccinated. The vaccine is not a silver bullet cure all. Some people that have been vaccinated may still catch the virus after having the flu shot, but the risk of illness is still reduced.
My 8 year old made this comment from my account.he is very much interested in immunology and microbiology in this covid 19 time.
Bro what
Second?
Today is national childrens day
First!
Second
Please anyone help me .. i just need gernal researchwork on influenza virus.. am not able to find out
Please anyone help me .. i just need gernal researchwork on influenza virus.. am not able to find out