A recovered COVID-19 patient donates plasma at a clinic in Bangkok. By Kai KupferschmidtScience's COVID-19 reporting is supported by the Pulitzer Center.On 13 March, with the COVID-19 pandemic exploding and drugs elusive, Arturo Casadevall published what he considers “maybe the most important paper” of his long career.
In The Journal of Clinical Investigation, the infectious disease specialist at Johns Hopkins University and Liise-anne Pirofski of Albert Einstein College of Medicine argued that one effective treatment might already be at hand: the blood plasma of people who have recovered from the disease, rich in antibodies against the virus.