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 ...

COVID-19 severity appears to be declining among hospitalized children as the Omicron variant continues to evolve.

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 ...

By Hugo Francisco de Souza A novel nasal booster approach may help close the gap between systemic vaccination and infection-blocking mucosal immunity, offering fresh insight into next-generation COVID ...

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 ...

HOUSTON, Texas (KTRK) -- More cases of the omicron variant of COVID-19 have been detected in the Houston area. The new nine cases were detected at Houston Methodist Hospital. Houston Methodist ...

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 -- 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 ...

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 ...