Notably, several of the new studies are finding these powerful responses in people who did not develop severe cases of Covid-19, Dr. Iyer added. In some cases, the body could even jettison the viruses so quickly that it fails to catalog them. But “the vast majority of the cases are these mild infections,” said Jason Netland, an immunologist at the University of Washington and an author on the paper under review at Nature. There are so many factors coming into play.”Research in animals could help fill a few gaps. Small studies have shown that one bout of the coronavirus seems to protect rhesus macaques from contracting it again.

Source: New York Times August 16, 2020 21:33 UTC