The virulent illness spreads easily in close quarters, causing diarrhea, vomiting and stomach pain An outbreak of norovirus — the virulent, highly contagious stomach illness — has been reported at one ...

A 'quad-demic' of winter illnesses is surging throughout the South, Midwest, and parts of the Northeast US, according to the ...

Avian influenza A (H5N1) has mutated, so the symptoms of bird flu could change as more people get sick in 2025.