Coronavirus
Latest about Coronavirus

Rapid tests may not detect omicron early in infection
By Nicoletta Lanese published
However, PCR tests, which are more sensitive, detected the virus in the early days of infection.

Omicron may cause milder disease. A lab study hints at why.
By Nicoletta Lanese published
The omicron variant of SARS-CoV-2 may be less efficient at infiltrating the lungs and spreading from cell to cell, early lab studies suggest.

Breakthrough COVID cases may supercharge immunity, study hints
By Nicoletta Lanese published
There may be a silver lining to breakthrough infections, although they obviously still carry risks.

The coronavirus infects fat cells, study suggests
By Nicoletta Lanese published
Yet-to-be-reviewed research suggests the coronavirus infects fat cells and certain immune cells in fat.

Newfound flavor of omicron variant may be harder to track
By Nicoletta Lanese published
The newfound version, BA.2, may be slightly harder to track.

Omicron variant may have evolved in rats, one theory says
By Nicoletta Lanese published
Some features of the omicron variant's genome hint that it may have evolved in rodents.

1st case of omicron variant in US confirmed in California
By Yasemin Saplakoglu published
U.S. officials confirmed the first U.S. case of omicron in California.

The Omicron variant: What we know so far
By Yasemin Saplakoglu published
On Nov. 26, the World Health Organization (WHO) named a new coronavirus variant "Omicron" and designated it as a "variant of concern."
Stay up to date on the latest science news by signing up for our Essentials newsletter.
Thank you for signing up to Live Science. You will receive a verification email shortly.
There was a problem. Please refresh the page and try again.