And the latest on Omicron. By Jonathan Wolfe This is the Coronavirus Briefing, an informed guide to the pandemic. Sign up here to get this newsletter in your inbox. New York City is being pummeled ...

Coronavirus variants like omicron, delta and mu are an expected part of the virus's life cycle, but vaccines can prevent more infectious variants from forming.

Early reports from South Africa seem to show omicron is highly infectious but not "as virulent or as pathogenic as the delta variant" of coronavirus.

The emergence of the omicron strain of COVID-19 is raising new questions about the still undetermined origin of the coronavirus outbreak and whether it leaked from a Chinese research laboratory in ...

The omicron variant of the SARS-CoV2 coronavirus has been described as "highly mutated" by numerous publications over the past few days. But what does this actually mean and does a virus having ...

SARS-CoV-2 is evolving "rapidly," spawning one new variant after another. But omicron continues to dominate, raising new questions about how evolution of the virus is headed.

The new omicron variant took only a few weeks to live up to dire predictions about how hugely contagious it is but scientists don’t yet know if it causes more severe disease even as the world ...

What happens when you have a surging Omicron variant and a busy travel season? Trouble. As many as 3.5 million people are projected to travel through Los Angeles International Airport from Dec. 16 ...

The Omicron variant of the virus that causes COVID-19 likely acquired at least one of its mutations by picking up a snippet of genetic material from another virus - possibly one that causes the ...

Named after the Greek letter, the omicron variant is the 13th of the SARS-CoV-2 variants to receive a designation by the World Health Organization.

Using these various pictures of spread, we can get an idea of just how contagious omicron is. If one person gets omicron, how many people does it spread to on average?

The White House launched a hotline Friday morning for Americans to request free at-home Covid-19 tests. Follow here for the latest news updates.