William Petri is a professor of medicine at the University of Virginia.
William’s Recent Stories
Health Jun 30What doctors know about lingering symptoms from coronavirus
Is it possible that people who recover from COVID-19 will be plagued with long term side effects from the infection? An infectious disease physician reviews the evidence so far.
Health Jun 16Public bathrooms carry coronavirus risks. Here’s how to be careful
Public restrooms can be scary when it comes to coronavirus, and they get scarier when you look at how the virus spreads. A doctor explains how to stay safe when you're traveling and really gotta go.
Health May 195 questions about asymptomatic COVID-19 cases, answered
People who are infected with the coronavirus but don't show any symptoms are playing a major role in spreading the virus.