Recent study: Levels of an antibody found in recovered #COVID19 patients fell sharply in 2-3 months after infection for both symptomatic and asymptomatic patients, raising questions about the length of any immunity against the novel coronavirus.

Recent study: Levels of an antibody found in recovered #COVID19 patients fell sharply in 2-3 months after infection for both symptomatic and asymptomatic patients, raising questions about the length of any immunity against the novel coronavirus. 🧵https://t.co/s7m697EFuH

— Eric Feigl-Ding (@DrEricDing) June 23, 2020