virus transmission

Many Countries Have Mask, Vaccine Mandates. Do We Need Them?

What a Delhi Hospital Study Does and Doesn’t Tell Us About Covishield v. Delta

After India, B.1.617 Variant Found in 44 Countries, Spurs Fear of Global Surge

Six-Year Study Reveals How Nipah Virus Spreads Among Fruit Bats

The Effect of Using Face-Masks and Other Protection on COVID-19 Transmission

New Virus Lasts Hours on Surfaces, in Air but Proximity to Patients Is Riskier