A new variant of COVID-19 found in Southern California is coursing across the United States and around the world, a new study finds. The variant — called CAL.20C — was first found in July in Los Angeles County. It reappeared in Southern California in October, then spread in November and December, with a regional surge…  read on >  read on >

Too much coffee during pregnancy could lead to kids with behavior problems later on. That’s the key takeaway from new research that examined 9,000 brain scans from 9- and 10-year-olds as part of the largest long-term study of brain development and child health. “The goalposts are moved by caffeine, and there are subtle, but real…  read on >  read on >

Despite widespread efforts to increase access and awareness, new research shows there’s been virtually no change in the number of people on waiting lists for potentially lifesaving kidneys over the past two decades. For their study, scientists analyzed information on more than 1.3 million adults with kidney failure listed in the United States Renal Data…  read on >  read on >

When choosing a face mask to help prevent the spread of COVID-19, it seems like the choices are endless. To make the decision a little easier, researchers at the University of British Columbia in Vancouver, Canada, tested several styles in 41 types of fabric. The upshot: A mask made of two layers of low-thread-count quilting…  read on >  read on >

Here’s some good news for people who’ve had solid organ transplants and have weakened immune systems: mRNA coronavirus vaccines are safe for these vulnerable folks, new research shows. The study included 187 transplant recipients who received an initial dose of either the Moderna or Pfizer mRNA vaccines between Dec. 16, 2020 and Jan. 16, 2021.…  read on >  read on >