Masks are making an unwanted comeback in many parts of the United States, after new data showing that fully vaccinated people with “breakthrough” coronavirus infections carry enough virus in their bodies to pose a potential risk to the unvaccinated. But these breakthrough infections — which have become slightly more common with the highly transmissible Delta…  read on >  read on >

Young Americans from low-income homes are more likely than those whose families are better off to be unhappy with the way they look and to have an eating disorder, a new study finds. University of Minnesota researchers examined 2010-18 data from Project EAT, a long-running study tracking the general health and well-being of teens as…  read on >  read on >

People fully vaccinated with the Moderna COVID-19 vaccine appear to have a lower risk of a “breakthrough” infection caused by the Delta variant than those who received the Pfizer vaccine, a new, preliminary report suggests. The researchers emphasized that both vaccines still “strongly protect” against severe illness, but the difference appears to be in the…  read on >  read on >

With COVID case counts surging as the school year begins, new research showing that the Moderna vaccine is safe and effective for teens should reassure parents who are on the fence about the shots. “Large trials in adults and smaller trials in adolescents show that this vaccine is effective and safe, and outside of these…  read on >  read on >

THURSDAY, Aug. 12California on Wednesday became the first state to require teachers and other school staff to provide proof of COVID-19 vaccination or else have to undergo weekly tests. The announcement, made by Gov. Gavin Newsom, comes as a growing number of public and private employers nationwide implement vaccination mandates amid surging COVID-19 cases driven…  read on >  read on >

New research offers insight into a rare but dangerous inflammatory disease that can occur in children after COVID-19 infection, researchers report. More than 2,600 cases of multisystem inflammatory syndrome in children (MIS-C) have been reported in the United States since the start of the COVID-19 pandemic. It’s characterized by fever, pain and inflammation of multiple…  read on >  read on >