INDIANA — Public health officials are issuing a nationwide warning as Norovirus cases climb earlier and more aggressively than expected this winter.
While the stomach bug is a seasonal staple, CDC wastewater surveillance indicates that the 2025–2026 season is moving at an accelerated pace, particularly within seven specific states.
States Under Watch
Significant spikes in outbreak activity have been identified in:
- Indiana
- Louisiana
- Michigan
- California
- Alabama
- Texas
- Florida
By the Numbers: An Early Start
According to the CDC’s NoroSTAT surveillance, there have been 644 confirmed outbreaks between August 1, 2025, and early February 2026. While this remains within historical averages, the “early and fast” spread has experts concerned about a prolonged peak. The virus thrives in cold weather as people congregate indoors, surviving for days on hard surfaces.
Symptoms & Transmission
Norovirus is notoriously difficult to contain because it requires only a few viral particles to cause infection. Symptoms typically appear 12–48 hours after exposure and include:
- Sudden onset of vomiting and intense nausea.
- Watery diarrhea and stomach cramps.
- Occasional low-grade fever and body aches.
The primary danger is dehydration, which can escalate quickly in children and the elderly.
Critical Defense Strategies
Health officials emphasize that standard hygiene often fails against this specific virus. To protect your household, follow these targeted steps:
- Soap Over Sanitizer: Alcohol-based hand sanitizers are not effective against Norovirus. Scrubbing with soap and water for at least 20 seconds is the only way to physically remove the virus.
- Bleach is Best: Most household cleaners won’t kill Norovirus. Use a chlorine bleach solution for high-touch surfaces like doorknobs and counters.
- Isolate and Wash: If a family member falls ill, isolate them immediately. Wash contaminated clothing or bedding on the hottest possible setting.
- Kitchen Safety: Avoid preparing food for others for at least 48 hours after symptoms subside.
