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 >

Cancer-causing human papillomavirus (HPV) is considered a sexually transmitted infection, but a new study shows that many babies are born carrying the virus in their mouths. “In brief, HPV infection can be acquired at early age or even at birth,” said lead researcher Dr. Stina Syrjanen, head of oral pathology and oral radiology with the…  read on >  read on >

Certain genetic factors in people with Down syndrome may increase their COVID-19 risks. Previous studies have found that people with Down syndrome are 10 times more likely to die from COVID-19, and experts have said they should be among those given priority for vaccination. In this new study, Spanish researchers examined genetic differences in people…  read on >  read on >

Taking prescription opioid painkillers or a common class of antibiotics during pregnancy doesn’t increase the risk of major birth defects, according to two new studies. Both are often prescribed to pregnant women. Some studies have linked them with certain birth defects, but findings have been inconsistent. These new studies — published Feb. 10 in the…  read on >  read on >