Add Yahoo as a preferred source to see more of our stories on Google. Around the globe, a new strain of COVID-19 is spreading exponentially. As health officials prepare for a potential uptick in COVID ...

New York and New Jersey joined a host of other states in rolling back restrictions as the percentage of fully vaccinated adults in the U.S. surpassed 40%. The U.S. reported more than 29,000 new cases ...

The COVID-19 virus spreads via mucus once inside an infected airway, allowing it to reach into the lower lungs, according to a Northwestern Medicine study published in Nature Communications. More than ...

SAN FRANCISCO (KGO) -- A surge in coronavirus cases has been reported in the Bay Area and across California as well as the country due in part to the emergence of the highly-contagious delta variant.

WASHINGTON — Americans can once again order COVID-19 tests, without being charged, sent straight to their homes. The U.S. government reopened the program on Thursday, allowing any household to order ...

Around the globe, a new strain of COVID-19 is spreading exponentially. As health officials prepare for a potential uptick in COVID-19 cases this fall, we asked the experts to answer your FAQs. From ...