Antigen & antibody testing - Inspiration & advice - Boots
An antibody test is a blood test to check if you've had COVID-19 before. It works by checking for antibodies in your blood. It doesn't test for an active COVID-19 infection. Your body makes antibodies when you get an infection and they help you to fight it off. The results from these tests can also help scientists learn more about the spread of the virus.
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