Wanted: A coronavirus test to identify people who were infected and then recovered
4 years, 9 months ago

Wanted: A coronavirus test to identify people who were infected and then recovered

LA Times  

A lab worker in Milan, Italy, runs tests to see if people were infected with the coronavirus that causes COVID-19. Understanding how many people were immune to the new coronavirus would help public health officials anticipate their communities’ healthcare needs by assessing how many remain vulnerable and how aggressive the virus actually is. “If we don’t test,” said microbiologist Esther Babady of Sloane Kettering Cancer Center, “then we don’t know what’s going on and we really don’t know the extent of the virus.” After a disastrous rollout, tests capable of detecting an “acute infection” — the presence of the SARS-CoV-2 virus actively replicating inside the body — are finally starting to be put to broad use. Sinai Medical Center in New York have published instructions for a COVID-19 antibody test that other labs could use to create their own testing capability. That would be enough to gather blood from patients whose antibodies are strong and plentiful enough to make treatments using “convalescent plasma.” Still under development, such therapy would use so-called neutralizing antibodies harvested from patients who have recovered from COVID-19 to treat or prevent COVID-19 illness in others.

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