Actualización de la peticiónUC Davis should require vaccinated people on campus to do covid tests every two weeks
Omicron

Julian EliasCA, Estados Unidos
13 dic 2021
"The World Health Organization noted on Sunday that while data was still limited, there have been early indications that fully vaccinated people likely do not not have sufficient antibodies to fight off symptomatic infection with the Omicron variant, which warned could lead to increased transmission, with 'severe consequences.'"