Children may have an increased risk of obesity if their mothers were exposed to high levels of air pollution during pregnancy, researchers say. In a new study, 123 Hispanic mother-infant pairs were enrolled in an ongoing trial in the Los Angeles region. Before pregnancy, about one-third of the mothers were normal weight, one-third were overweight…  read on >  read on >

Novavax, a Maryland biotechnology company that has struggled mightily with delays in developing its coronavirus vaccine, announced Monday that its two-shot regimen was over 90% effective overall in a trial that unfolded even as more contagious variants emerged. Among 30,000 volunteers — all of them from either the United States or Mexico — vaccinated people…  read on >  read on >

A rising number of young Americans, including children, are taking their own lives using firearms, a new study finds. Researchers found that between 2008 and 2018, gun suicides showed an “alarming” increase among Americans aged 5 to 24. And while those suicides remain rare among children, the rate among kids under 15 quadrupled during the…  read on >  read on >

There’s more proof that getting a flu shot during pregnancy doesn’t pose a risk to children’s health. “This study adds to what we know from other recent studies showing no harmful effects of flu vaccination during pregnancy on the longer-term health of children,” said study leader Dr. Deshayne Fell, an associate professor of epidemiology at…  read on >  read on >

The coronavirus pandemic has affected American smokers in different ways, a new study finds. While some smoked more to help them cope with the crisis, others quit to reduce their COVID-19 infection risk. “Even before the pandemic, tobacco smoking was the leading preventable cause of death in the United States. COVID-19 has given smokers yet…  read on >  read on >