On 5/27/2021 3:40 AM, Sergey Babkin wrote:
теперь у него есть шанс получить супер-иммунитет
https://www.nytimes.com/2021/05/26/health/coronavirus-immunity-vaccines.html
In fact, memory B cells produced in response to infection with
SARS-CoV-2 and enhanced with vaccination are so potent that they thwart
even variants of the virus, negating the need for boosters, according to
Michel Nussenzweig, an immunologist at Rockefeller University in New
York who led the study on memory maturation.
“People who were infected and get vaccinated really have a terrific
response, a terrific set of antibodies, because they continue to evolve
their antibodies,” Dr. Nussenzweig said. “I expect that they will last
for a long time.”
The result may not apply to protection derived from vaccines alone,
because immune memory is likely to be organized differently after
immunization, compared with that following natural infection.
That means people who have not had Covid-19 and have been immunized may
eventually need a booster shot, Dr. Nussenzweig said. “That’s the kind
of thing that we will know very, very soon,” he said.
...
Dr. Ellebedy’s team obtained bone marrow samples from 19 people roughly
seven months after they had been infected. Fifteen had detectable memory
B cells, but four did not, suggesting that some people might carry very
few of the cells or none at all.
“It tells me that even if you got infected, it doesn’t mean that you
have a super immune response,” Dr. Ellebedy said. The findings reinforce
the idea that people who have recovered from Covid-19 should be
vaccinated, he said.