Norovirus Symptoms

Norovirus: Symptoms and Treatment

Back on dry land, noroviruses also have a big impact on people's health.

What Are Noroviruses?

Noroviruses are sometimes called food poisoning, because they can be transmitted through food that's been contaminated with the virus. Noroviruses are also sometimes called the stomach flu, although they aren't the influenza virus.

What Causes Infection With Noroviruses?

People become infected with noroviruses when they eat food or drink liquids that have been contaminated; raw or undercooked oysters and raw fruits and vegetables have been implicated in some outbreaks.

What Are the Symptoms of a Norovirus Infection?

Typical symptoms include nausea, vomiting (more often in children), watery diarrhea (more often in adults), and stomach cramps.
Other norovirus symptoms include:

low-grade fever

chills

headache

muscle aches

fatigue

A small percentage of people who are infected with norovirus never have any symptoms, which suggests they might have some natural protection from the virus

Norovirus Treatment

Noroviruses, like other viruses, don't respond to antibiotics, which are designed to kill bacteria. Most people don't have any long-term problems from the virus.
To prevent dehydration, make sure to drink plenty of liquids, especially water and juices. Give children an oral rehydration solution (such as Pedialyte) to replace lost fluids and electrolytes. If severe dehydration develops, contact your doctor. Severe dehydration is sometimes treated with intravenous (IV) fluids.

How to Prevent Norovirus Infection

Carefully dispose of any contaminated items (such as dirty diapers).

• Wash raw fruits and vegetables thoroughly.