Scientists researching the Provincetown, Cape Cod Covid outbreak reported that 79 percent of the breakthrough infections were symptomatic. Four of five people who were hospitalized were fully vaccinated.
The CDC study “raises the very worrisome possibility that high viral loads can occur in people who have Delta, and this is a fundamental as we have to approach the fall and winter,” said David O’Connor, a professor of pathology and laboratory medicine at the University of Wisconsin School of Medicine and Public Health.
