Both the European Union and the Food and Drug Administration (FDA), in the United States, have now approved certain antibody tests for COVID-19.
But what are these tests, and how can they be useful? Read our Special Feature to find out. If you have been following the news about research into COVID-19 treatments, you may have seen mentions of “antibody testing.” But what exactly are antibody tests, how do they differ from similar-seeming tests — such as antigen tests — and are they of any use?
In this Special Feature, we pursue these questions and describe the possible role of antibody testing during the ongoing pandemic.