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 ...

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 ...

Unlike early Omicron strains such as BA.1 and BA.2, Cicada has more changes that might help it dodge immunity from vaccines ...

The dizzying speed of omicron’s spread has left Americans questioning much of what they know about COVID-19, especially following holiday travel. “This is hitting us at a very inopportune time,” said ...