Archive · 30 Nov 2025
Norovirus Cases Rising Rapidly in US
Norovirus, also known as the 'winter vomiting disease,' is spreading quickly in the US.
It causes stomach problems like vomiting and diarrhea.
The virus spreads when people touch things that have the virus on them, like from someone's vomit or poop.
Right now, about 14% of tests for norovirus are positive, which is more than before.
The virus is especially bad for older people, young kids, and those with weak immune systems.
To stay safe, wash your hands a lot, clean surfaces with bleach, and don't prepare food for others if you're sick.
Drinking lots of water is also important to stay healthy.
Norovirus cases are rising in the US, with 14% of tests now positive, up from 7% three months ago.
The virus causes gastroenteritis, spreading through contact with vomit or feces of infected individuals.
High-risk groups include the elderly (65+), young children, and immunocompromised individuals.
Wastewater data shows a 69% increase in norovirus levels nationwide since October.
Preventive measures include frequent hand washing, using bleach-based cleaners, avoiding close contact, practicing food safety, and staying hydrated.
- Who
- General population, with higher risk for the elderly, young children, and immunocompromised individuals
- What
- Norovirus outbreak causing gastroenteritis
- When
- Recent weeks, with a seasonal pattern observed
- Where
- United States, particularly in states like Louisiana, Michigan, and Indiana
- Why
- Highly contagious virus spreading through contact with vomit or feces of infected persons
- Positive Test Rate
- 14%
- Annual Outbreaks
- 2,500
- Annual Hospitalizations
- 100,000
- Annual Deaths
- 900
- High-Risk Groups
- Elderly (65+), young children, immunocompromised individuals
- Wastewater Increase
- 69% since October
- Prevention Methods
- Hand washing, bleach-based cleaners, avoiding close contact, food safety, hydration