Posts Misinterpret CDC’s Provincetown COVID-19 Outbreak Report

A statistic from a CDC report about a COVID-19 outbreak in July is fueling false and misleading claims on social media about how well the Food and Drug Administration-authorized vaccines protect against the disease, which is caused by the novel coronavirus.

Clinical trials and studies of the vaccines under real-world conditions show that the immunizations are highly effective in preventing severe disease and death, even against the highly contagious delta variant — although they may work less well against infection and symptomatic disease with delta, as we’ve written. The delta variant now...