The Biden administration significantly loosened mask-wearing guidelines to protect against COVID-19 transmission in local communities on Friday. The news, which was first reported by The ...

A dominant strain of norovirus is emerging, which could disrupt the seasonal pattern and increase the number of outbreaks, a June 2 CDC report suggests. Here’s what to know: 1. In previous years ...

A new variant of COVID-19 is circulating in parts of the world and may be driving an increase in cases in the eastern Mediterranean, Southeast Asia and western Pacific regions.