The FDA on Wednesday authorized one of the first Covid-19 tests that measures the amount of neutralizing antibodies produced by the body’s immune system after exposure to the virus — a “new generation” of coronavirus test that is designed to tell how well someone is protected against infection.
A person’s immune system produces antibodies to combat viruses and other foreign pathogens that invade the body. When it comes to Covid-19, it remains unclear how much protection antibodies provide and how long that might last, but this test could help researchers better understand the role of Covid antibodies in immune protection.
