Known as subclade K, a new, mutated flu strain that has dominated in Europe and Asia is now rapidly spreading across the US.

COVID, norovirus, whooping cough, bird flu, dengue fever-- there is no shortage of viruses making headlines in the U.S. right now. But why does it seem like so many are getting sick lately? Stream NBC ...

Given the vomiting and diarrhea, the biggest risk with norovirus is dehydration, which can turn a short-term illness into a ...

Rates of enterovirus D68 infections are on the rise across the United States, according to the nonprofit WastewaterSCAN network. This common virus can lead to a rare but serious polio-like ...

Cases of "sloth virus" have been reported in the U.S. and Europe for the first time. But what is it? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

They came for blood — and left behind something worse. Thousands of people in China have been infected with a painful mosquito-borne virus, triggering the country’s most aggressive public health ...

Earlier this month, the Trump administration said it was terminating $500 million in mRNA vaccine research and shifting its focus to other approaches, including a previously announced “whole-virus” ...

Two individuals in Germany who were transported from Hamburg Central Station to the University Medical Center Hamburg-Eppendorf (UKE) on Wednesday for precautionary examinations have tested negative ...

The CDC reports the new H3N2 subclade K is particularly affecting younger populations as the country enters peak flu season between December and February.

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Realizing that your computer is infected with a virus can be a heart-stopping moment, but there's no need to panic. Viruses or other malware can have a devastating effect on your PC, slowing its ...

A rare and deadly mosquito-borne disease has been popping up again this summer: eastern equine encephalitis, a viral illness that causes brain swelling in severe cases and has claimed at least one ...