Citat:
Ursprungligen postat av
Ola Schubert
Du tycker alltså att det verkar......
Utan att ange någon källa.
"Intressant", I don',t think so.....
Källa: the guardian
Researchers at Oxford University recently analysed blood from recovered Covid-19 patients and found
that levels of IgG antibodies – those responsible for longer-lasting immunity – rose steeply in the first month of infection but then began to fall again.
Last week, scientists at Rockefeller University in New York found that most people who recovered from Covid-19 without going into hospital did not make many killer antibodies against the virus.
“That’s what is particularly challenging,” says Stanley Perlman, a veteran coronavirus researcher at the University of Iowa. “If the natural infection doesn’t give you that much immunity except when it’s a severe infection, what will a vaccine do? It could be better, but we don’t know.” If a vaccine only protects for a year, the virus will be with us for some time.
Länk:
https://www.theguardian.com/world/2020/may/22/why-we-might-not-get-a-coronavirus-vaccine