Norovirus cases are surging across the United States, with recent data from the Centers for Disease Control and Prevention (CDC) showing a sharp rise in outbreaks.
Often referred to as the “stomach flu,” norovirus is notorious for causing severe bouts of vomiting and diarrhea, leaving those infected feeling weak and dehydrated. The virus spreads quickly, making it the leading cause of foodborne illness in the country. As the CDC closely monitors the uptick, health officials urge the public to take preventive measures to curb further outbreaks.
The latest CDC data highlights 91 reported outbreaks during the week of December 5, a significant jump from 69 cases the previous week and 32 outbreaks recorded the week before that, reported Axios. Compared to prior years, this surge is alarming, with the highest number of outbreaks previously recorded during the same timeframe being 65 cases.
The rapid rise has prompted health officials to investigate common exposure points and reinforce hygiene practices. With norovirus outbreaks often concentrated in schools, nursing homes, and cruise ships, the CDC emphasizes frequent handwashing and disinfecting surfaces.
Norovirus affects millions of Americans annually, with estimates ranging between 19 million to 21 million infections, according to the Scientific American, reported Axios. The virus thrives in environments where people are in close contact, such as dormitories, daycares, and restaurants. Its ability to spread through contaminated food, water, and surfaces, as well as direct contact, makes it especially challenging to contain.
The CDC notes that while most cases resolve within a few days, vulnerable populations, including young children and elderly adults, face higher risks of complications like severe dehydration.
The CDC classifies a norovirus outbreak as two or more cases linked to a shared exposure, whether suspected or confirmed through laboratory testing. Symptoms typically appear within 12 to 48 hours of exposure and include nausea, abdominal pain, and fatigue, in addition to vomiting and diarrhea. Because the virus can linger on surfaces and resist common disinfectants, outbreaks can persist unless thorough cleaning protocols are implemented. Officials stress the need for vigilant sanitation efforts, particularly in high-traffic areas.
Health experts warn that norovirus tends to spike during colder months when people spend more time indoors, increasing opportunities for transmission. As holiday gatherings and travel continue, the risk of spreading the virus grows, reported Axios. Medical professionals recommend avoiding food preparation if feeling ill, disinfecting frequently touched surfaces, and staying hydrated to mitigate symptoms.
Although there is no specific treatment for norovirus, supportive care, such as electrolyte replacement, helps manage dehydration caused by fluid loss.