Ensayo invitadoEl viaje evolutivo de la COVID-19 ha sido funesto e impresionanteEl coronavirus, como muchos otros virus, evoluciona deprisa. ¿Los seres humanos y su ingenio podrían adaptarse más rápido a él?By David Quammen

5 years later, long Covid is still a medical mystery: What scientists have learned

Covid vaccines for pregnant women, healthy kids are no longer recommended by CDC, RFK Jr. says

Here’s what you should know

5 years later, long Covid is still a medical mystery: What scientists have learned

Covid vaccines for pregnant women, healthy kids are no longer recommended by CDC, RFK Jr. says

Here’s what you should know

CDC says parents can decide with doctors if healthy kids get Covid shots

Covid vaccination protects against severe kidney damage, study suggests

CIA shifts assessment on Covid origins, saying lab leak likely caused outbreak