Norovirus positivity rate hits 28%, double 2024’s peak: 6 notes

Becker's Healthcare January 15, 2025
Alexandra Murphy

A surge in norovirus infections this season has resulted in a 28% positivity rate, more than double 2024’s high, alarming health officials, CBS News reported Jan. 14.

The unprecedented spike is a part of a broader viral surge as the U.S. grapples with four major viruses — norovirus, respiratory syncytial virus, influenza and COVID-19. Hospitals across the country are also feeling the strain, as emergency departments struggle to accommodate the rising number of patients.

Here are five more notes:

1. The norovirus positivity rate surged to 28% the week of the New Year’s holiday, more than double the 13.5% peak from last year, according to CDC data. This marks the highest rate in over a decade.
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