Am I immune to COVID-19 if I have antibodies?
- Written by William Petri, Professor of Medicine, University of Virginia
For those who have suffered from COVID-19, do their antibodies guarantee immunity from subsequent disease?SEBASTIAN KAULITZKI / Getty ImagesPerhaps the most important question now about COVID-19 is the degree to which a prior infection protects from a second infection by the new coronavirus. This affects vaccine development and herd immunity and...

