Reason for concern, but not unnecessary alarm, researchers say. The first real-world study pitting COVID-19 variants against the Pfizer vaccine showed that the variant first detected in South Africa ...

The U.S. said Friday that it would restrict travel from South Africa and seven other countries amid fears that a newly-discovered COVID-19 variant could lead to a surge of worldwide cases and deaths.

Covid has largely dropped out of the headlines, but the virus that causes it is still circulating. We ask what we should know about a new variant of SARS-CoV-2, the state of the Covid pandemic in 2025 ...

The current vaccines will still prevent severe illness and hospitalization. Since the emergence of several new COVID-19 variants across the globe, scientists have been racing to understand their ...

A new COVID-19 variant — XFG, also known as Stratus — is spreading rapidly, the Centers for Disease Control and Prevention says. The South Carolina Department of Health does not track COVID infection ...