CDC study shows three-fourths of people infected in Massachusetts coronavirus outbreak were vaccinated but few required hospitalization

CDC study shows three-fourths of people infected in Massachusetts coronavirus outbreak were vaccinated but few required hospitalization

“Although most cases were not hospitalized, thus showing the vaccine works in an important way, this study is portentous for the achievement of herd immunity,” Andrew Noymer, an epidemiologist [and associate professor of population health and disease prevention] at the University of California, Irvine, said in an email. “If the vaccinated can become infected (and, we believe, from other studies, potentially spread covid), then herd immunity becomes more of a mirage than oasis.”