![](https://www.coronaheadsup.com/wp-content/uploads/2021/09/40-percent-vaccine-breakthrough-in-Massachussetts-last-week.jpg)
USA: 40% vaccine breakthrough in Massachusetts last week
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.
Image by Oliver Fuß from Pixabay
** This post was originally published on September 3, 2021 **