WASHINGTON, D.C. — President Joe Biden laid out what his administration is doing to combat the emergence of the omicron variant and he encouraged the American people to get vaccinated against COVID-19 ...

As evidence mounts that the omicron variant is less deadly than prior COVID-19 strains, one oft-cited explanation is that viruses always evolve to become less virulent over time. The problem, experts ...

The race is on for new treatments that stand up to omicron's explosive spread. With omicron's explosive spread threatening to outpace current COVID-19 treatments, the race is on to find new options ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

WASHINGTON -- Many of the world's richest countries have spent the past year hoarding coronavirus vaccines, buying up enough doses to vaccinate their populations several times over and consistently ...

Neutralizing antibody levels rose 37-fold one month after the booster was given. Moderna announced Monday that its COVID-19 vaccine booster increases antibody levels against the omicron variant within ...

WASHINGTON (AP) - As strained U.S. hospitals brace for a new surge of COVID-19 cases caused by the fast-spreading omicron variant, doctors are warning of yet another challenge: the two standard drugs ...

PHILADELPHIA -- Americans face at least two weeks of uncertainty before major questions may get answered about the omicron variant of the coronavirus. Health experts urge the public to be cautious and ...

NEW YORK -- What are the symptoms of omicron? Health experts still don't know if the new variant is causing milder COVID-19, but more indicators are emerging. The World Health Organization's top ...