It's how the flu vaccine works and how a developed coronavirus vaccine would work.I'd summarise that quote as - you can get flu more than once, the vaccine (or developed immunity) lasts a year so get it every year.
Quote from: highrepute on March 13, 2020, 11:30:07 amI'd summarise that quote as - you can get flu more than once, the vaccine (or developed immunity) lasts a year so get it every year.I'm not sure how you get that summary. It's a quote about coronaviruses, not flu vaccines.
I'd summarise that quote as - you can get flu more than once, the vaccine (or developed immunity) lasts a year so get it every year.
Flu and Corona (and common cold) are both viruses. They behave in the same way. I think it sounds quite scary to say you can get corona-virus multiple times and if you have immunity it only last a year. But saying the same about flu doesn't seem so bad because we know it to be the case and we live with it every year.
I have a cunning plan.In theory you could isolate all the people in high-risk groups and their carers, whilst deliberately infecting all the people in low-risk groups. Those infected wouldn't have to be isolated and could even go to work if they felt up to it. There's bound to be a few selfish types who would refuse deliberate infection. They would just have to sit it out with the high-risk group. 2 to 3 weeks down the line and we're all done and dusted.I admit you may struggle to get this past the ethics committee.
Quote from: highrepute on March 13, 2020, 12:35:56 pmFlu and Corona (and common cold) are both viruses. They behave in the same way. I think it sounds quite scary to say you can get corona-virus multiple times and if you have immunity it only last a year. But saying the same about flu doesn't seem so bad because we know it to be the case and we live with it every year.The quote doesn't say that immunity only lasts a year, it says that people with other corona viruses have been purposely, successfully and symptomatically reinfected after a year. A straight reading of the quote does not imply that that re-infection could not have occurred earlier or that there was any immunity developed prior to reinfection. The situation is different to flu, because Covid-19 is many times worse in terms of mortality and morbidity (I note very little is being said about survivors that are left with significant lung and other organ damage) and because the whole point of the government strategy is an assumption that immunity is developed so that widespread infection is desirable. The point of the quote was to question the basis of that assumption.
The best studied of the non-SARS coronaviruses, human coronaviruses 229E and OC43, cause respiratory symptoms, such as rhinorrhea, nasal congestion, sore throat, and cough, as well as systemic symptoms, including fever, headache, and malaise, when they are inoculated intranasally in adult volunteers. Symptoms develop 2 to 4 days after inoculation, but about 30% of the volunteers who excrete virus had no associated illness. Symptoms usually persist for about 1 week but sometimes for as long as 3 weeks. Previous infection does not induce high levels of protective immunity. Humans can be reinfected with respiratory coronaviruses throughout life, and human volunteers can be symptomatically reinfected with the same strain of coronavirus 1 year after the first infection.
Sounds quite scary right, as you are pointing out?human coronaviruses 229E and OC43 are type of the common cold. Now doesn't sound quite as scary. Which is my point - that it's easy to make this sound scary.But I get your point, which I missed before. There are types of coronavirus that once you've had don't induce "high levels of protective immunity". I guess my next question is what does "high levels" mean?
Most UK cases are ongoing, the individual has neither died or recovered. The average time between onset of symptoms and death is about 17 day, so death figures will always be lagging behind eventual totals. On a side note younger healthier folk take longer to succumb, so we wont know the true age spread of fatality in the UK for a good while yet.
I'm not sure if 'optimist' is the best descriptor of saying death rate is 1% of a massive number. Better that than 2% though!
He was saying that while testing is going on at hospitals, due to time it takes to get kitted out in protection for the swabbers, they can do 12 a day max.