COVID-19 variant XFG accounted for 0% of U.S. cases in May. By late-June, it became the third-most common strain.

COVID-19 infections are "growing or likely growing in 40 states" in the country, according to the U.S. Centers for Disease ...

A new COVID variant, known as XFG or “Stratus,” is rapidly increasing in prevalence in the United States, becoming the third ...

The mosquito-borne chikungunya is rare in China, but the CDC urges caution and Chinese officials have taken steps compared to ...

The number of people with COVID-19 in the U.S. is low but increasing, according to Centers for Disease Control and Prevention ...

A new CDC panel is expected to meet soon to consider whether to revise, roll back, or hold steady on current vaccine guidelines. Flu and COVID vaccine recommendations are shifting, which is raising ...

The Department of Health and Human Services plans to cancel contracts and pull funding for some vaccines being developed to ...

The CDC report found the number of kindergarteners in the United States with a non-medical exemption for vaccines is climbing.

COVID questions answered. I just participated in a classic disease spreader: We had a family reunion with over 30 people. One ...

As COVID-19 cases rise in 40 states, a cold-like virus is also making its rounds, leaving many feeling achy, miserable and congested.

A chikungunya outbreak in southern China has infected over 7,000 people, triggering aggressive mosquito-control measures and ...

China is battling a concerning Chikungunya outbreak with over 7,000 cases in Guangdong, prompting COVID-style restrictions ...