Confirmed COVID-19 cases are up week-over-week, according to CDC data. Here's what to know the week of Aug. 25.

"As these viruses continue to evolve, public health officials watch carefully to see whether new strains will be more easily ...

A new variant of the virus that causes COVID-19 is spreading in the U.S., raising concerns about a potential wave of ...

Add Yahoo as a preferred source to see more of our stories on Google. (NewsNation) — As the weather begins to change and respiratory illnesses become more common, a highly transmissible strain of ...

Add Yahoo as a preferred source to see more of our stories on Google. COVID test. A stock image of a positive COVID-19 antigen test kit. COVID-19 cases continue to persist as South Carolinians settle ...

A new COVID-19 variant sweeping through China has yet to make a sizable footprint in the U.S., the Centers for Disease Control and Prevention (CDC) says. In January, a new COVID-19 variant known as NB ...

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.

Flu has overtaken covid in infections and hospitalizations during the winter respiratory virus season, and their virulence is ...

COVID-19 cases continue to climb week-over-week as summer draws to a close, according to U.S. health data. Some regions of the United States are experiencing higher rates of positive COVID-19 tests ...