A growing number of norovirus outbreaks are hitting the United States, with 91 suspected or confirmed cases reported in the first week of December. This is a significant increase from previous years and exceeds the number of outbreaks seen during the Covid-19 pandemic.
Norovirus, which affects an estimated 19 to 21 million people nationwide each year, can cause sudden and unpleasant gastrointestinal symptoms. Outbreaks are most common between November and April, but recent cases have been reported in December as well.
The virus is highly contagious and can spread through contact with infected individuals or contaminated food, water, or surfaces. Dr. William Schaffner, a professor of infectious diseases, notes that norovirus is “extraordinarily” contagious due to its ease of transmission and ability to survive on surfaces for days or weeks.
Contaminated water, shellfish, and public spaces also pose risks for norovirus transmission. To reduce the risk of infection, good hand hygiene is essential, with soap and water being more effective than hand sanitizer in removing the virus. Cooking oysters and other shellfish until they reach 145°F can help prevent infection, as well as thoroughly washing fresh fruits and vegetables.
Symptoms of norovirus include diarrhea, fever, and vomiting. Since there is no antiviral treatment, doctors recommend staying home from work or school, drinking plenty of fluids, and letting the infection run its course. Young children, older adults, and immunocompromised individuals are most at risk of severe dehydration and complications.
As norovirus cases continue to rise, it’s essential to take precautions to prevent transmission, including limiting contact with infected individuals or surfaces, washing soiled linens thoroughly, and avoiding preparing food for others until symptoms have subsided.
Source: https://www.nytimes.com/2024/12/30/well/norovirus-symptoms-outbreak.html