USA: 40% vaccine breakthrough in Massachusetts last week

AY.3, AY.4, B.1.617.2, Coronavirus, Deaths, Delta, Delta-AY.3, Delta-AY.4, Hospitalization, Infection, Janssen, Massachusetts, Moderna, Pfizer/Biontech, Transmission, USA, Vaccine, Vaccine Breakthrough, Vaccine Waning, Variants

Breakthrough infections accounted for about 40% of all cases reported in Massachusetts last week. The Massachusetts Department of Public Health has tracked a cumulative 19,443 confirmed COVID-19 infections among those fully vaccinated in the state to date and a total of 144 deaths. report




Image by Oliver Fuß from Pixabay

** This post was originally published on September 3, 2021 **