To help combat Omicron, the Biden administration is opening up more Covid testing sites and delivering 500 million Covid tests to Americans. WSJ’s Daniela Hernandez breaks down why testing is still a ...

If you have loved ones who are immunocompromised or not yet eligible for a COVID-19 vaccine, you know the problem: They need to wear high-quality masks for safety, but the masks can be uncomfortable ...

Wearing a cloth face mask did not cause significant respiratory or cardiovascular changes during exercise, including heart rate, blood pressure, lactate, or oxygen saturation, regardless of exercise ...

Heavy duty N95 and KN95 masks are best at warding of COVID-19, while commonly worn surgical and cloth face coverings filter only about 10 percent of exhaled aerosols, according to a new study. “The ...

The School District of Philadelphia is updating its masking guidance. In a statement Wednesday, the district said cloth masks alone are “no longer considered to be effective protection against the ...