5 Ways to Recognize Norovirus

May 7th 2016

All these symptoms could combine to make the patient feel weak due to lack of both food of water. Over the course of the infection, the body may get rid of the norovirus through feces up to three days after the infection starts. Antiviral drugs do not affect noroviruses, and the infection goes away on its own in normally healthy people. Consult with your doctor or a health care provider to determine the best way to handle a norovirus infection.

Healthy One Day, Miserable the Next

People usually become sick 12 to 48 hours after exposure to a norovirus. You could be completely healthy one day, and the next day, show symptoms of the disease. Most patients feel better one to three days after the onset of symptoms. The key to treatment is knowing when to see a doctor.

Nausea and Vomiting

You may feel nauseous, and you could vomit several times in one day when you have a norovirus. This feeling could appear without warning, and after you attempt to consume food or water. You could also suffer from stomach cramps. If you ingest the same amount of fluid that you vomit or lose through diarrhea, you may not need to seek medical treatment for dehydration.


Many patients with a norovirus infection lose fluids through watery stools and diarrhea. Unlike bacterial infections that reach the gastrointestinal tract, a viral infection does not cause blood or pus to form in the stool. You may experience uncontrolled diarrhea several times a day.


Frequent, uncontrolled vomiting and diarrhea could lead to dehydration. Symptoms of dehydration include infrequent urination, dry mouth and dizziness when standing up. At this point, you might need intravenous fluids to help balance your electrolyte levels. Younger children, older adults and people with other underlying illnesses could be more prone to dehydration during a norovirus infection.

Mild Fever

Anywhere from one-half to one-third of patients develop a low-grade fever with a norovirus infection as the body attempts to fight it. People who are already in the hospital with another illness may be more susceptible to fever. Fever reducers could help lower the fever, but patients with nausea may not be able to keep the medicine down.


Norovirus has become synonymous with a bad vacation cruise, as entire ships of people have been infected. This type of infection may come from food poisoning, and it is also called the stomach flu. Noroviruses cause inflammation of the stomach and the large intestine lining. Learn to recognize a norovirus by noting symptoms and when they occur.

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