For the first time in a decade, the rate at which American adolescents received the human papillomavirus (HPV) vaccine has not increased, new data show. Current guidelines from the U.S. Centers for Disease Control and Prevention recommend that both girls and boys receive the vaccine at ages 11 or 12, although vaccination can begin as…  read on >  read on >

Public health officials have detected the new BA.2.86 variant of COVID-19 in U.S. wastewater, giving rise to concerns about the highly mutated variant in the United States. The U.S. Centers for Disease Control and Prevention announced the detection on Wednesday. It was found as part of routine wastewater sampling. Officials did not specify where the…  read on >  read on >

With 2023 predicted to be the hottest year on record, a new study is pointing to another potential consequence of heat waves: faster declines in older adults’ memory and thinking skills. The study, of nearly 9,500 older U.S. adults, found that those with greater exposure to heat waves over 12 years also showed a steeper…  read on >  read on >

Living through days of smoky air from Canadian wildfires in June was unpleasant for New York City residents, but new data shows it wasn’t as immediately concerning for their lungs as feared. The research finds breathing-related hospital visits weren’t much worse in the city on these days than when pollen is especially high, though longer-term…  read on >  read on >

Cancer patients with immune systems weakened by treatment are among the groups most concerned about the continued spread of COVID-19 and the chance of the infection becoming severe. New research suggests more guidance on how often these patients need protective booster shots. It’s not one-size-fits-all, but depends on the specific treatment, said scientists from Yale…  read on >  read on >

Millions of Americans who experience major depression will suffer a relapse, but a new study suggests that learning to focus on the positive, rather than the negatives in everyday life, might help reduce those odds. “What we started to realize is it’s not just about how people with depression process negative information but there’s something…  read on >  read on >

When astronauts travel to space, the experience depletes their red blood cells and bone, according to a new study. Fortunately, it appears their bodies can eventually replenish them after they’ve returned to Earth, thanks to fat stored in the bone marrow. “We found that astronauts had significantly less fat in their bone marrow about a…  read on >  read on >

One source of lead exposure in children may surprise you. It’s secondhand smoke, according to a Texas A&M University study. “Further research will likely paint a clearer picture of this exposure route, especially in younger children, but the findings here can inform current efforts to eliminate low-level lead exposure in children,” said co-author Dr. Genny…  read on >  read on >