A heavily mutated COVID-19 variant called "Cicada" has caught the attention of public health experts, who warn that the differences in its spike protein may allow it to slip past existing immunity, including protection from current vaccines.

SAN FRANCISCO (KGO) -- 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 less severe cases of COVID-19. "Unvaccinated people ...

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 failing to deliver on their promises to share doses with ...

MANILA, Philippines - Measures used to counter the delta variant should remain the foundation for fighting the coronavirus pandemic, even in the face of the new omicron version of the virus, World Health Organization officials said Friday, while ...

The question hung in the air like a bad odor, silencing the small group of fully vaccinated and boosted friends and family at my dinner table. "Why not just get omicron and get it over with? It's mild, right? And it can boost immunity?" The fully ...