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Scientists See Signs of Lasting Immunity to Covid-19, Even After Mild Infections – The New York Times

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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. Some researchers have worried that infections that take a smaller toll on the body are less memorable to the immune system’s studious cells, which may prefer to invest their resources in more serious assaults. In some cases, the body could even jettison the viruses so quickly that it fails to catalog them. “This paper suggests this is not true,” Dr. Iyer said. “You can still get durable immunity without suffering the consequences of infection.”

What has been observed in people who fought off mild cases of Covid-19 might not hold true for hospitalized patients, whose bodies struggle to marshal a balanced immune response to the virus, or those who were infected but had no symptoms at all. Research groups around the world are continuing to study the entire range of responses. 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. “If those people are going to be protected, that’s still good.”

Read More: https://www.nytimes.com/2020/08/16/health/coronavirus-immunity-antibodies.html

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Source: https://www.nytimes.com/2020/08/16/health/coronavirus-immunity-antibodies.html

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