Recent data from the Centers for Disease Control shows spikes in norovirus, Covid-19 and RSV across the U.S.—a resurgence that’s potentially unlike the usual annual winter spread of these illnesses, which have been less active in recent months.
Norovirus is a contagious virus that typically presents as projectile vomiting and diarrhea after ingesting contaminated food or drink, interacting with contaminated surfaces or interacting with a sick individual, and it is the most common foodborne virus.
Reported norovirus cases spiked in late November and grew by nearly 31% percent increase to 91 reported outbreaks nationally in the first week of December—the highest level of the year and a near three-year high; from 2021 to 2024, the largest number of reported outbreaks at the start of December was 41 cases, although just 14 states report norovirus outbreaks to the CDC.
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