Do you have anti-coronavirus antibodies? – WSJ


One of the big uncertainties in the coronavirus pandemic is the number of people who are unknowingly infected or have no symptoms. Fortunately, there are now tests for this, and their large-scale deployment will be essential to saving lives and getting Americans back to work.

Dozens of public and commercial health laboratories around the world are deploying antibody tests that can show whether a person has recently been infected with the virus and has developed immunity. When fighting a pathogen, the immune system produces known proteins …


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