A highly infectious variant of COVID-19 that has spread around the world since it was first discovered in Britain late last year is between 30% and 100% more deadly than previous dominant variants, ...

Researchers at the Icahn School of Medicine at Mount Sinai and collaborators have created the most comprehensive map to date ...

The Stratus COVID-19 variant has been fueling a rise in cases across the country. Stratus is currently the dominant variant in the U.S. This variant is slightly more infectious than previous variants.

As summer comes to an end, COVID-19 cases are on the rise again in California. While respiratory viruses usually peak in the winter, the novel coronavirus can also surge in the warmer months.

Scientists have learned more about the uk and South American variant of the COVID-19 virus, and how they might be affected by vaccines. The news isn't good, but behind the scary headlines is important ...

As states grappled with confusion around vaccines, COVID-19 cases have continued to fluctuate nationwide. Some regions of the United States are experiencing "very high" COVID viral activity, according ...

In fall 2025, rumors spread that the strain of the virus in circulation that causes COVID-19 had "very different signs" ...

NEW DELHI (Reuters) - India reported a new variant of the coronavirus on Wednesday as it struggled with the highest single-day tally of new infections and deaths this year. The variant, described by ...