Stomach Flu Outbreak 2025. In the week between december 26 and january 2, the number of norovirus outbreaks nationwide increased from 15 to 25 (a cdc representative said an update to these. Data reported here provides a summary of norovirus and rotavirus activity, including enteric virus (ev) outbreaks, in england up to reporting week 17 of the 2023/2025 season.

The 2025 norovirus outbreak hitting the northeast, including nearly 70 cases now being investigated in an upstate new york college town, has health officials scrambling to contain. The h5n1 avian flu, having mutated its way across species, is raging out of control among the nation’s cattle, infecting roughly a third of the dairy herds in california alone.