States are scrambling to vaccinate as many people as they can while the rate of new U.S. coronavirus infections stays steady, but still high, for a third week.
Groggy during the day? Feeling burned out at work? That could put you at increased risk for COVID-19 and more severe illness, a new study suggests.
The U.S. COVID-19 vaccination program is proceeding apace, with more than one-fifth of adult Americans having received at least one dose and eligibility opening up for everyone by May 1, under orders from President Joe Biden.