Health officials in several countries, including the United States, have hung their hopes on tests that identify coronavirus antibodies to decide who is immune and can go back to work. Experts said the next step would be to confirm that the presence of antibodies in the blood means protection from the coronavirus. The body depends on a subset of antibodies, called neutralising antibodies, to shield it from the coronavirus. Even if the levels of antibodies fall over time to undetectable levels, people may still retain some protection from the coronavirus. So-called memory cells, or B cells, may also kick into gear when they encounter the coronavirus, churning out more antibodies.

Source: bd News24 May 08, 2020 06:45 UTC