LOUISVILLE, Ky. (KT) — Public health researchers have detected a recent rise in norovirus levels in Louisville’s wastewater, according to Louisville Metro Health and Wellness.
This increase — found in sewage rather than hospitals — suggests that more of the virus is circulating in the community and could lead to a spike in gastrointestinal illnesses.
What to know about norovirus
Norovirus, often called the “stomach flu,” is a highly contagious virus that causes sudden stomach pain, nausea, vomiting, and diarrhea. Each year, it’s responsible for about 21 million illnesses in the U.S. Most people recover within one to three days, but young children, older adults, and those with weakened immune systems face a higher risk of dehydration and other complications.
The virus spreads easily through tiny traces of stool or vomit from infected individuals. People can get sick by touching contaminated surfaces or hands and then touching their mouths, or by eating food prepared by someone who is ill. It can also spread through shellfish harvested from polluted waters.
Norovirus infections can occur year-round but are most common between November and April. The virus can survive for days on surfaces like doorknobs and tables, allowing it to spread quickly in schools, daycares, care facilities, and workplaces. Even after symptoms stop, infected people can still spread the virus.
While lab tests can confirm norovirus, testing is usually unnecessary unless symptoms are severe, prolonged, or linked to an outbreak.
How to protect yourself and others:
-
Wash hands frequently with soap and warm water for at least 20 seconds — hand sanitizer does not kill norovirus.
-
Clean high-touch surfaces and bathrooms with a bleach-based cleaner.
-
Cook seafood thoroughly and wash fruits and vegetables before eating.
-
Wash soiled clothes or linens in hot water and dry on high heat.
-
Stay home if you’re sick with vomiting or diarrhea, and wait at least 48 hours after symptoms stop before returning to work, school, or childcare, as you may still spread the virus.
Health officials emphasize that consistent hygiene and caution during food preparation are key to preventing further spread of the virus this winter.
This article has been carefully fact-checked by our editorial team to ensure accuracy and eliminate any misleading information. We are committed to maintaining the highest standards of integrity in our content.
Leave a Comment