LOS ANGELES - An unvaccinated health care worker set off a COVID-19 outbreak at a nursing home in Kentucky where the vast majority of residents had been already vaccinated, according to a new study from the U.S.
Centers for Disease Control and Prevention.According to the CDC study, the outbreak led to the infection of 26 facility residents — including 18 who had been vaccinated — and 20 health care personnel, including four who had been vaccinated.