A healthcare worker administers a dose of the Pfizer-BioNTech Covid-19 vaccine at a immunization clinic at the Peabody Institute Library in Peabody, Massachusetts, on Wednesday, January 26, 2022. Vanessa Leroy | Bloomberg | Getty Images The new omicron Covid boosters are unlikely to be very effective at preventing Covid infection and mild illness, but they …
Continue reading “Omicron boosters aren’t very efficient for gentle sickness”

