Tag Archives: breakthrough

Breakthrough Infection and Vaccine Efficacy.

( Breakthrough infection is the new Covid cases among the fully vaccinated persons.) A total of 10,262 SARS-CoV-2 vaccine breakthrough infec­tions had been reported from 46 U.S. states and territories as of April 30, 2021. As of April 30, 2021, approximately 101 million per­sons in the United States had been fully vaccinated against COVID-19. https://www.cdc.gov/mmwr/volumes/70/wr/mm7021e3.htmContinue reading “Breakthrough Infection and Vaccine Efficacy.”