It happens very rarely, but most teens and young adults who do experience heart inflammation (myocarditis) after a COVID-19 shot have mild symptoms and recover quickly, new research shows. “Overwhelmingly, data continue to indicate that the benefits of COVID-19 vaccination — 91% effective at preventing complications of severe COVID-19 infection including hospitalization and death —…  read on >  read on >

A boy or a girl? New research suggests that the air pregnant women breathe or the water they drink could play a role in their baby’s sex. The finding stems from tracking hundreds of factors — including pollution exposure — surrounding the birth of more than 6 million Americans and Swedes. “To my knowledge, this…  read on >  read on >

Five cases of the Omicron coronavirus variant have been detected in New York state, one in Minnesota and one in Hawaii, officials in those states announced Thursday. That brings the known total in the United States to nine, with California and Colorado previously announcing one case each. One of the New York cases is a…  read on >  read on >

If you’re getting together with others outdoors, a windy day might be best, researchers say. The investigators found that when people socialize outside, the risk of coronavirus infection is as much as 45% greater when there’s hardly any breeze than when there are stronger winds. “The issue is really about an increased danger of infection…  read on >  read on >

Autism may be more prevalent among American children than believed, a new U.S. government study shows. One in 44 children at age 8 in the United States have been diagnosed with the developmental disorder, a jump from the previous estimate of 1 in 54 children, the U.S. Centers for Disease Control and Prevention report found.…  read on >  read on >

Children and teenagers vaccinated against the mumps virus have accounted for one-third of infections in recent years, a new U.S. government study finds. The reasons are unclear, and experts stressed that routine childhood vaccination remains the best weapon against mumps — a contagious infection that is usually mild, but can cause serious complications. After the…  read on >  read on >