If the infection risk for blood donors in England is similar to the infection risk in the overall UK population, then about a quarter of the UK population has been exposed to Covid in the past.
obviously. but after the recent great "this data/infographic doesnt indicate anything because this and that and the other thing" debate, not sure why you are using "if"s now.
yea i was gonna mention that too, but decided to be nice.Not-so-obviously, this number is probably outdated now
a large enough percent of immunocompromised people (just like elderly people) do not mount adequate immune responses to the vaccine. That is why the FDA/CDC originally said those populations need a booster.I did not know that vaccine uptake among the immunosuppressed is 95% in England, common appeals are "we must protect the immunosuppressed";
and part of the reason why i said masks are more important.
the other part is this:
The study from researchers at the U.K. Health Security Agency reported on Friday that the protection against severe disease is more than likely only short-term. However, they added that the shot still offers protection from severe illness.
The research suggested that two weeks after the third dose of the Pfizer vaccine, protection from symptomatic infection is around 70%. From there, the numbers fall drastically.