U.S. Seeing Sharp Rise in Norovirus Cases This December

MONDAY, Dec. 30, 2024 (HealthDay News) — Norovirus is surging across the United States this winter, according to the latest data from the U.S. Centers for Disease Control and Prevention.

The data show 91 outbreaks of norovirus during the week of Dec. 5, a sharp rise from the 69 outbreaks recorded the previous week, according to the Associated Press. For context, the first week of December has typically seen a maximum of 65 outbreaks in recent years.

Outbreaks tend to occur in crowded settings such as nursing homes, schools, jails, and cruise ships. The report comes after a recent outbreak that infected more than 300 individuals onboard three different cruise ships earlier this month.

Norovirus spreads rapidly through direct contact with infected individuals or contaminated food, water, or surfaces. Symptoms usually appear 12 to 48 hours after exposure and last for one to three days. While most people recover fully, dehydration from vomiting and diarrhea can be dangerous, particularly for young children, older adults, and those with weakened immune systems.

The best defense against norovirus is frequent and thorough handwashing with soap and warm water for at least 20 seconds, especially before meals. Disinfecting surfaces with household cleaners can also reduce the risk for infection.

Associated Press Article