Infection, Immunity and epidemiology
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- čas přidán 24. 07. 2024
- Infection and immunity
Infection
Infectious (transmissible) disease
Organism
Bugs
Host
Clinical features
Carrier
Immunity
Probability of exposure leading to infection
Virulence of organism
Number of organisms
Immune defences
Humans and bacteria
Skin, mouth and vagina (mucous membranes), GI tract
Internal tissues are sterile
Relationships
Commensalism, mutualism or parasitic relationship
Commensalism - organisms which live with us but normally cause no harm, (commensal flora)
Mutual bacteria derive benefit from us and we from them, e.g. some coliforms produce vitamin K
Parasitic relationship the infecting organism benefits to the host’s detriment
Pathogenic microorganisms
Pathogens - virulent bacteria or viruses which usually cause disease if present
Commensal organisms can become pathogenic, opportunistic pathogens
Opportunistic microorganisms
Often of low pathogenicity but may cause infections in certain circumstances
Reduced host defences
Local and systemic infection
Inflammation
Conjunctivitis
Boils
Abscess
Osteomyelitis
Cellulitis
Balanitis
Systemic
Epidemiology
Causes, incidence, distribution and control of disease
Endemic
Epidemic
Pandemic
Mortality rate
Morbidity
Incidence
Prevalence
Dr. John we all owe you a debt of gratitude for the service you are providing.
Agreed...
think he deserves a coffee via his paypal because his work rate is impressive
@@tiffclarke1157 if your working id love to book an hr.
". . , & all he has to say is bugs!" ___B I G (The movie e\Tom Hanks)
After this is all said and done we the people should demand he gets a Nobel Prize.
This guy will never have to buy a beer in a pub again.
Scott DeMichele I think you mean a “lager” or “pint” ;)
Yep the good sir is now a hero of humanity. And shall be for all time.
chinese communist party will pay for it.
Scott DeMichele if he gets sick, I will breakdown, and be chicken little
@@mtn7224 Fair. I'm a Yankee, so I'll have a bottle of the Kentucky stuff, should Dr. John drop by.
Just imagine... imagine our governmental medical agencies actually informed us like this gentleman does, imagine... They're lacking tremendously in my opinion.
Doc, your dedication the past weeks/months has been absolutely invaluable.
I keep attending and enjoying to be informed. Thank you (from Netherlands).
Particle Config. - I’ve learned so much more than just a refresher after University!
Agreed. I'm more informed just watching the doctor than any news source.
World's major health organizations and institutions on the high levels have shaken our trust in them. History will remember what everyone was doing during these months.
@@GB-ty2uc While many of our population haven't noticed their fallacies, we've seen these inconsistencies and can pass that knowledge on.
Thank you Doctor, you're making a significant difference to those you reach
We should get a petition or something going for CZcams to turn his monetization back on. He’s doing the best work out there.
Do you think Hitler would look into Jews petition in WWII? Same here
Well I got 2 ads at the start, but who knows where the revenue for those went.
AHJBPhotogonU monitored by nwo!
Did you start one? ill sign it.
Dr. Campbell, You've taken some of the most complex ideas and made it possible for us to understand. We've learnt so much watching your videos. Not sure if you realize how many people are benefiting from your efforts. Please keep up the good work. God Bless.
He is a stellar human being.
Reality NotFiction, he’s kinda making me want to go back to school in my old age.
not demonetized! there were two ads at the start. i let them play until the end. remember not to hit Skip Ad, people. Dr. John deserves the ad revenue.
yep - i just turn the sound off during the adds & read some comments till they finish
Me too!
It actually doesn't make a difference. Watching a few seconds counts as watched. That's why CZcams makes you watch it for at least a few seconds
Good point. Thank you!
Pressing skip actually shows someone is there, watching and clicking... click it lol
Also dr Campbells personality and engagement calms me down despite these terrible times we are in. Thank you very much dr Campbell! I wait for your new videos every day now. Stay safe all!
Camilla Wiren yes so glad someone told me about him Being a single Mom right now is 2 scary!!!!
Your right he is quite calming. makes me wish he were my dr.
Don’t be soothed by optimism bias, remember he is operating within the numbers.
Alert not anxious. Stay healthy all!!
@@absolutefallout7806 bless you it's a scary time..but it's happend be for ..we will survive take care
Please stay safe and take care of yourself Dr. Campbell! We need u here, I think I speak for allot of us when I say YOU ARE OUR #1 SOURCE FOR TRUTH during this turbulent time. God bless you good Sir.
It's so nice to see the good Doctor has gotten rid of his cough.
I am the least scientific person (I'm in the legal field), but your teachings make total sense to me. You're a fantastic professor.
Thank you for your dedication. The world needs more people like you who have a very real handle on a subject and can communicate very clearly.
Have just given my elderly nieghbour a 30 minute briefing of the facts and do”s and don’ts based on everything I have learnt watching all of your videos over the past several weeks. She’s know in the know. I also gave her some of my preparation items to put in her home.
Bless you
beautiful ! 🌟
Poppet 2 thank you for your kind words 🙏🏼
Great, be proactive. Prepare, don't panic. Eat a whole food plant based diet, get enough sleep, exercise and reduce stress. Take care of yourself and each other. We can't rely on corporations and governments.
Celine E. Thank you too for your kind words. She’s such a lovely lady I want to do what I can to keep her safe. One day we will all get old (hopefully). 🙏🏼
This Doctor is incredible!!
+1
He is treasure and should be treated as such🥇
Do one Jo!!! You know nothing m8
Much appreciate your hard work and dedication to inform the people throughout the entire world!
I couldn't agree more! He has been amazing! Thank you Doc for educating us all!!! ❤😷❤👍
Doc Campbell, I’ve learned more from you while walking my dog than I remember from my high school biology
If you google doc's name, there's a petition on change.org to put him as head of W.H.O.
He would probably hate that job haha I hope he does get some official recognition, though, he deserves it 😊
@@thedrugthatkilled I just hope he gets a cameo in youtube rewind. Lol.
@@apxph6245 😂
I doubt it just because WHO would limit his speech. I don't trust them, UN and the EU. I don't have much faith in the CDC either.
No, don't punish him like that. He does not want to be a mouthpiece for the Chinese government, who are essentially controlling the WHO, with their 'face-saving' and politically-motivated misinformation.
Dr. Campbell please tell me I'm not crazy for buying extra food and bottled water. My friends and family think I'm stupid for doing so and think I'm being over the top.
Better to have something and not need it, than need it and not have it.
I've been thinking about getting a big bag of rice for an emergency
@here and now I usually have at least a month’s supply of everything in reserve. I don’t think you’re crazy, I think you’re smart & thoughtful.
@@FlameRedCat I wish I was so lucky
You are not crazy at all. The less you have to go out and be around other people the better. And if there is a wave of panic, there may be a shortage on specific items. It’s better to have a back up of those things. Secondly, as the days go on and more people become infected, the possibility of infected people handling your food goes up. Better to have those items already and avoid this. What’s the worst case of getting more food now? Nothing.
Thank you for passing on your great knowledge free of charge.
Just found out that my brother in laws relative was one of the casualties of the virus in Italy. This is becoming insane.
So very sorry to hear this. Praying for a quick end to this virus.
Before it’s over, all of us will know someone who died from it. Those of us who aren’t dead, that is.
@@anonymouse7095 How long have you been in the Doomsday death cult?
@@terihagerty9458 Thank you I appreciate that
Sorry for your loss!! Can u tell us something about age or underlying conditions of this person?
Fantastic - very informative and articulated in a manner which the non-medical person can understand. Thank you.
Full class today Dr John ...... Thank you again for educating (us) the average Joe Blow. Your calm ways (videos) are helping people to understand more and panic less!
We're going to see if our CDC here in the States will actually "look" for covid-19 in our community. If you don't look for it, it isn't there, right?
Exactly. Testing 500 people total isn't going to give you a good idea of what's really going on.
the kits aren't working, listened to a CDC conference call today. It's a nightmare. they are telling community leaders to prepare.
CDC actually warned people to prepare for community spread in the US and for disruptions in daily life today.
I've lived through six administrations and unfortunately this disease is hitting US during the least qualified, most dishonest Administration in recent history. It's all so understaffed with many critical positions still not filled after 3 years.
Not to mention how they've been firing and driving qualified "gray" bureaucrats out of the government.
I think their theory is...if they don’t test for it, it doesn’t exist. They released the quarantined people in Washington state but never tested them.
Dr John , thank you for your time and insight into the process of this new virus. My close loved ones are "elderly and have co morbidities" I do my utmost to ensure the security and care for my loved ones and you are a beacon of hope in these uncertain times.
Cooking and caring is about all I can do. And I thank you for your help in these uncertain times.
You sir are a true gentleman and an informative teacher. I only wish I knew of you years ago as I would be in a medical position now. If we can get through this. I shall do my utmost to gain some experience in caring and medicine to help with the future. Thanks for the information you are a fantastic teacher.x
Dr Campbell--I am a RN in the USA. An interesting fact : A Nursing supervisor came to our floor two days ago and said her job for the day was to go around the hospital and find every room which could hold a pt bed. I did not have to wonder why. I have been telling my coworkers to watch your videos. They are wonderfully informative! I have learned so much from you.The facts about the Covid-19 are clear and concise (no nonsense or BS). I agree that this should be called a pandemic very soon. I read "The Great Influenza" years ago and I see many parallels. Thanks so much!
Im at peace with these informative videos. Anywhere else puts panic to prepare without being informative.
Also, thank you very much for your service, educating the layman. I was watching your videos from day one... and I've been watching every day since! 🙂
Nashville, Tennessee listening here! Thanks so much for educating us on this virus. 💞
NC on the other side of the mountains. Stay Healthy!
@@winbri5 ❤🙏
Best lecture I have listened to for a while
Thankyou. I am learning so much from you, and once this virus has done one, I will start learning from all your other videos. I'm 63, and have so enjoyed learning again. Take care.x
I always thought that financial speculation was my "calling"; watching Dr. Campbell over the past month has made me realize that there is nothing more fascinating than nature. Thank you for your valuable time! We really do appropriate it!
Always knew librarianship was my "calling", actually, really, a calling from God. I had to retire two decades ago due to terrible clinical depression, broke my heart. With the Internet however I remind people to cite sources and occasionally post some site recommendations in "comments". I'm not strong enough to have my own website, but I keep recommending Dr. Campbell to others.
Retired Librarian, Michigan
P.S. God be with you, and with all those you love and cherish.
@@veralenora4033 If you recommend Dr. Campbell, you are doing them a favor. God bless you and your family as well
This information is so important, thank you!
Thank you Dr, again spot on information. Cheers
One of the best channels i have ever found! Thank you so much!
definitely considering epidemiology as a degree
You are going to be made for life when this disaster blows over.
You'll be better off learning self sufficiency skills, it's all changing going forward, big changes ,very soon.
I did a class of it, super interesting. Look up John Snow Cholera, watch pandemic the movie and Netflix show, plus the math is pretty cool too.
neil blackman I mean epidemiology seems really interesting which is the reason I’m considering it. Already learning about infectious diseases at advanced level (A level)
Kaleidoscoping Acid Coffee I shall 👍, cheers for the suggestions
Thank you Dr Campbell!
Thank you for the medical jargon definitions. A refresher for some, and new information for others. You might explain the difference between “acute” and “chronic”for the general public watching your videos.
❤️ much love from Texas
Don’t Trip 👆🏻❤️
This was absolutely the best offering from Dr. John to date! And it is fascinating!
Thank you Dr. Campbell. Somebody already mentioned it in comments - you should be KNIGHTED for all your hard work and effort to help humanity that is facing this dangerous new virus. Much respect and gratitude to you and be safe.
Thank you for all the information you’ve shared. I just received a notice from my kids school (from public health in British Columbia Canada) and it’s all crap. They aren’t treating it as serious as it is. I wish the government would treat this as the pandemic it is and give its people proper information.
@Melissa Martins Ha! That must be the same information our Health District is handing out! Crap with a capital C!
Just curious what information is it? Bc im in central europe and what we got is dont cont come to school for two weeks if you feels sick ig haha
lululuna videos that’s basically what it was. They recommend that anyone coming from China stay home for 14 days and anyone with possible symptoms to stay home for 14 days and to not worry about missed school. The thing that bothers me is that this is only a recommendation not a requirement. It will be interesting to see this all play out. In my area we have a massive shortage of family drs... I can’t imagine what this will do to put health care system. What a mess.
tougholdbird ! Given what I’ve been hearing from Dr. John, this newsletter was a huge letdown. I just come off as crazy when I talk about the reality of the situation. I’m not sure where to go from here. I guess just clean the house and ourselves and hope we’ll be ok.
I’m in Alberta and Canada’s approach has been lacklustre at best. Same with the US. We need to look to Singapore and South Korea and start taking lead from them
Dr Campbell I'm just a gardener & feel like I'm turning in to an expert on the virus & how to be prepared .
All my friends think I'm crazy worrying about it .
1 of my palls that works in a lab in a local hospital reckons it's just the flu !
I really look forward to each new video you make .
Thank you for keeping me & many others well informed .
Stuart Martin I briefed my dad today & asked him to prepare stocks & soups to freeze to last 4 weeks in case of a shutdown. I have severe autoimmune disease so I’m bedbound and reliant upon parents. Was delighted he didn’t think I was freaking out. Also told my mum she couldn’t see her friend who just returned from artic cruise with people from all over the world. I think dr John is keeping us as calm as we can be🤩
@@jsc9000 it only takes 50mm of snow for people to panic buy , it will be interesting to see how this pans out . Still most people think there's nothing to worry about
Stuart Martin never say “just” a gardener!
Just! There is no 'just'.
Those aphids aren't going to spray themselves.
Thank you for improving the public vocabulary in medicine. It's easier to explain what we're experiencing with viruses when we have the language to do so.
14,000 views in 30 minutes ...we are waiting with bated breath 😶
Girl in Bar: Wow! You sure do know a lot about infections! Are you a virologist? Me: No, but I watched Dr. John's video last night.
David Wiggins - This should be a classic and put in a novel! Thank you for giving me a happy chuckle 😂
Lol
Excellent John, thanks for this. Loved the Epidemiology discussion - I am an epidemiologist so I especially enjoyed hearing you discuss this.
Talk about “flashback”. Took me back to medical microbiology and pathology classes in dental school in 1974-1976, He did an incredible job condensing the “meat” of the topics. Good job sir.
Dr John, your a great teacher..👍💖👍
The WHO will call obesity a pandemic but not the COVID-19. Ok then.
www.reuters.com/article/china-health-who/who-says-no-longer-uses-pandemic-category-but-virus-still-emergency-idUSL5N2AO1BP
Hahahah
That’s just crazy...they are very concerned with labels. First it’s the name of the virus to covid-19, now this. It’s so odd...
@@esp92310 minor nitpick, the virus is called SARS-CoV-2 the disease that the virus causes is called Covid-19
lululuna videos obesity was the symptom of excess glucose and hyper insulin, hyper glycemia (diabetes in situ according to Dr Joseph Kraft). WHO misjudged obesity as the cause when it’s actually a symptom.
All this feels like a movie and he is exactly like the character who warns everyone with facts while governments hold back facts and explanations
And then Trump says " no problem" Really you sick man!
Like that guy Woody Harrelson plays in 2012 trying to warn people
I see him being played by Anthony Hopkins.
@@wereoursouls3472 or played by Michael Cane
I Have to share my good news. My son finally cancelled his trip to the Phillipines from Honolulu leaving tomorrow.. He vacations often and plans to retire there part-time when time comes. He left it til last minute but South Korea made him very nervous. Mothers never ever stop worrying. Dr. Campbell Thank you for all the good info. So helpful.
Dr Campbell I am a public health nurse in the USA. I have watched each and every single video of yours. You are a great educator. You have taught me a lot. Please keep doing what you are doing. I am sure several people worldwide benefit from the information you are sharing! Thank you and God bless!
Lets get Dr Campbell voted in as the new boss of WHO
Then he'd have to become part of the NWO.
I doubt he will act as a mere puppet, he is not suitable
me, an anti social person: phew
Hear you on that brother .. Yeah! .. that's right .. I don't want to be touched by another living soul .. who's laughing now? 🤣😭
Dark Tenka It’s airborne though.
Human interaction is vastly overrated.
Another Marty Robbins fan! I grew up listening to him and still know the words to all his songs, lol.
Be careful of sexual contact with other people. That's an emotional hole in most people's defenses. And we already know that the disease can spread from sexual contact.
Thank you, Dr. John, this is good information everyone should know. People need to know these things to be informed about themselves and their communities.
Bless you Dr. Campbell. We're all so fortunate to have access to your uploaded and continuing wealth of information. I'm very grateful for your practical advice and quest for public awareness about this virus, and your urging us to "get real". Some of us only need gentle prompting, some kinda need prodding, and some of us need to be virtually dragged to the point of realisation.
I've been watching you for weeks doctor scince this all started but my family won't listen to me I'm trying my best but I feel I'm going insane I'm so scared half my family have asma and illness's
Same, they all think I’m overreacting
Do not be afraid. Be prepared..
I don't care what they think of me.. I'll keep screaming my head off about this virus..IAM a RN..I do not fool with this, it means business.
balthiers girl me too. It’s frustrating.
After a month of trying to warn my family of the severity of THIS virus, I’m tired of getting the side eye and whispers behind my back. I even caught an uncle making the universal coo-coo motion, winding his finger at his ear, behind my back. And he’s 77 🤷🏽♀️
WHO: “Pandemic? What’s that?”
Didnt they call it today?
They think its a board game.
@@jeremyboughtono2 about Pandas
I see you commit this on every video
i guess you cant call it a Pandemic if they dont call it a pandemic!!! They should be done for manslaughter....
Dr. John, you deserve lots of praise for informing people just about every day about the updates and explain things in such a very easy to understand way. Thank you so very much for doing so.
Very informative. Excellent videos Mr Campbell. Keep the good work.
So many thanks from North Carolina. I love you too!
You are a God send. Thank you....... you are loved xx
Thank you so much doctor John Campbell. I want to keep learning more since I'll probably be the nurse of my family.
Dr.John your the best out there. Telling everything just like it is. N not sugar coating anything. This is what we need to hear. The truth
Evening Doc. Thank you once again.
Could you do a video on how STRESS effects the immune system 👈
Stress is always overlooked. Keeping stress low is extremely important for your immune system
Thanks John, really appreciate you taking the time to break this all down for us 🙂👍
You can really sense Dr Campbell's passion for teaching in this video. Thank you Dr Campbell!
In 2 weeks time the UK will have hundreds or maybe a thousand cases.
marccas10 I wouldn’t be surprised if we already had a lot of cases that were not tested for & just looked like a bad case of flu. My whole family have not long got over a flu that took 6 weeks to recover from & had the same symptoms as Covid19. Since most cases are mild, how is a ordinary person meant to identify one from the other?
they will if they let 5 G get started , it seems strange that this pneumonia like virus nobody has phlegm , they have dry coughs . The the cruise boat and it's sister ship have 5 g on board , this virus is the excuse to bring the economy down that is already in free fall, nobodies fingerprints are on the weapon this way , Trump will not be blamed and the central banks own humanity they won't own the world because earth is not a planet it is a flat motionless plane.
Probably more like 100k. You probably already have 1000 cases... just not diagnostic yet
kieran franey woah. I was gonna give you cred until you said flat earth theory. Yikes.
I guarantee it. Stands to reason if you use all the other badly infected countries as a model ... given that the UK govt hasn't taken a single step to screen and contain ...
Thanks for your time and education.
This video was phenomenal! It took me back to my school days when I was going through my classes for paramedic, and now, my daughter will be going through this video and info for nursing. Thanks, Doctor John! You are the man, best wishes, and please do whatever it takes to stay healthy and safe.
Another great video from you Dr. John! Thanks for the information!
Once again...thanks John.
Thank you for doing a tremendous job educating us all and preparing us for the Covid-19 pandemic. By the way I would host you in the friendliest sense of the word any time. Ironically though, host means cough in my native language (Danish).
You are the Best! Thank you yet as again for the time and effort you consistently devote to keeping us all so well informed!
You sir, are a gem!!! I've watched every video you loaded about the coronavirus and i am forwarded them to others
Romania reported its first #COVID19 case. The patient returned from Italy three weeks ago, which means #coronavirus was already spreading in Italy way before the current outbreak.
Makes sense as from what we know from infection to serious condition it takes usually few weeks (4-5) and asymptomatic is from few days to few weeks. Good luck all
There is a difference between there being an outbreak and the medical profession being aware of an outbreak - any deaths indicate this virus has been in circulation for at least four weeks.
Maybe this virus has really already infected hundreds of thousands or millions that are mild or asymptomatic and the mortality rate is really just similar to the flu? People thought H1N1 (Swine Flu) had a high mortality rate but it ended up being 0.02 percent even when a fifth of the population were infected with it
@@varunrajesh6516 It depends on which version of the Swine Flu you are talking about - the 1918 version killed up to 2.5% on average and in some isolated populations where any flu is rare (native American for example) 80 to 90%.
@@varunrajesh6516 H1N1 is the common flu now
Thank you (again)
Today's class had more than 9,000 students. None of us slept...
I'm with everyone else. Total gratitude for the steady and calm way you share your knowledge. I think I've learned as much in these video's as I did in all my Bio classes in college. Thank you does not seem enough!
Greetings from Colombia. You’re an amazing human being, thank you for everything.
I'm learning... but even better, understanding it!
Appreciate it doc, but I made a 98% out of 100% on my microbiology final.
Though this is great info for most people who've not yet realized that they need to become their own advocate when it comes to them and their loved one's health.
Have you read Dr Natasha Campbell, she has a very useful article on how the immune system and microbiology works.
@@catarinameehan8394 No. I haven't. I shall file it away for future reference if I feel I need to refresh my knowledge base. You can never have too much of that!
Thank you for sharing your knowledge with us, it very much appreciated.
Got to love Dr. John. Doing work
Thank you sir for your hard work!
Thank you Dr.
I thank you from the bottom of my 💓 for the time and work you take to inform us!
Whoa nice clarification of some terms we wondered over the past month! Thank you Dr.
I paid good money for these classes. Appreciate it Doc.
Thank you 🙏
Thx(again) for the update dr . Campbells
It is fascinating & thank you for your time explaining so much.
From Norway, thanks Doc🙂
Dr Scott Gotlieb in USA during a CNBC interview said the lack of cases in the US, is because we do not have a test that works!
I have heard that unless you have been to China or in contact with someone who has AND exhibit the symptoms; they won't test for the virus.
Dr. Campbell thank you so much for this update.
Thank you once again Dr. Campbell for this information. God bless.
The UKs Chief Medical Officer was quoted today on the BBC
The next step, he said, would be to think about closing schools and parts of the public transport network and cancelling events with large crowds
But the cost to the economy and society would have to be weighed up against the health benefits.
"The expectation is not that we will do all these things, the expectation is we will be looking systematically, using the science, at all the building blocks and balancing the effects against costs to society," he said.
Angela Frith : Will the costs be human or economic? I know, I need to ask him.
Angela Frith Yeah agreed that risk mitigation at this point is absolutely key, measures should be taken, buut i can understand if you are in the public spotlight, your whole career relies on public perception - and most people still dont consider the coronavirus a major threat (soon to change I think), so theyll just be pissed off if you close their public transport and ban gatherings. But yeah, I agree we need someone who can grow a pair and just get this done regardless.
can't lose money just to save lives can they, come on.
I've heard they've called the majority of the population "useless eaters".
I think those might be some of the hard decisions Dr Campbell is talking about. It’s pretty cold though.
@@lululunavideos3610 If they stop the football Bolton Wanderers can't be relegated. Not everyone would lose out or be sad!
WHO: "Who cares."
They are doing their jobs. Its hard to say who is overseeing how they communicate. This is all very political. We have to look after ourselves and our families.
WHO doesn't care about this virus.
www.reuters.com/article/china-health-who/who-says-no-longer-uses-pandemic-category-but-virus-still-emergency-idUSL5N2AO1BP
Doctor, WHO?
Thank you for all your videos. They are so helpful, and you explain things in simpler terms, where most anyone can understand. It's very much appreciated and you have my respect.
As always thank you so much for the invaluable information. I've been pretty terrified the last few weeks, driving my family crazy, but your videos definitely help calm the crazy though. Thank you and be well Dr. Campbell!