Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

A new COVID-19 variant called Stratus is rapidly spreading worldwide, distinguished by one telltale early symptom that sets it apart from other strains. The emerging strain appears in two forms: XFG ...

The variant is officially named XFG but is being called Stratus. It was first found in Southeast Asia in January, and at the time was 0% of cases in the U.S., but by the end of June, it was about 14% ...

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.

Covid symptoms 2026: New research reveals long COVID symptoms are not isolated but overlap and vary among individuals. Fatigue is the most common symptom, often appearing with pain or breathing issues ...

As the weather cools and fall approaches, COVID-19 cases are still spiking in much of the United States. The country has yet to emerge from a late summer COVID wave driven by the highly contagious new ...

After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high.

CoV-2 variants now spread less efficiently in animals, lowering concerns that animal reservoirs could generate new variants ...

(NewsNation) — As the weather begins to change and respiratory illnesses become more common, a highly transmissible strain of COVID-19 is on the rise across the United States. Nineteen states are ...