Up until last week, official guidance suggested that presumptively healthy people didn't need to be wearing masks. Now, that has changed. In this episode, CNN Chief Medical Correspondent Dr. Sanjay ...

For more than a year now, many of us have followed the standard drill: wash our hands, stay 6 feet apart, choose outdoor activities over indoors, and -- most of all -- wear a mask. Once vaccines were ...

In this week’s “Dr. Sanjay Gupta On Call,” readers had a lot of questions this summer’s Covid-19 wave. Dr. Gupta explains when you should get your next Covid booster.