Antibody testing will be key to easing COVID-19 lockdowns so that cities can reopen and people can go back to their leisure and workplace safely. However, there are still not enough tests on the market. How reliable is antibody testing? Can we expect immunity after infection? Why is herd immunity a dangerous path? What does COVID-19 do to the body? Find out with Dr Djin-Ye Oh Robert-Koch-Institute/Rockefeller University and Dr. Anne Meier-Heinrich, Internist.