What is norovirus infection

It is possible to develop immunity to protection against specific types. But, it is not known exactly how long immunity lasts. This may explain why so many people of all ages get infected during norovirus outbreaks. Also, whether you are susceptible to norovirus infection is also determined in part by your genes. Learn how norovirus spreads from person to person and through contaminated food, water, and surfaces. Learn steps you can take to help protect yourself and others from getting infected with and sick from norovirus.

Norovirus is sometimes called the stomach flu or stomach bug. Trends and Outbreaks. Outbreaks are common The virus spreads very easily and quickly Norovirus spreads: From infected people to others Through contaminated foods and surfaces Outbreaks can happen anytime, but they occur most often from November to April.

Sending a child to youth camp? Stomach bug or norovirus? Norovirus illness is not related to the flu, which is caused by influenza virus. Links with this icon indicate that you are leaving the CDC website. Occasionally infected people may experience milder symptoms for a week or more.

Noroviruses are very contagious. They are found in the stool feces or vomit of infected people. From there, noroviruses are transferred to food, water, or surfaces by the hands of infected people who have not washed adequately after using the bathroom.

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Some people may even develop an infection after eating steamed shellfish. Noroviruses can also survive in up to 10 parts per million of chlorine , levels that are much higher than those available in current public water systems.

Despite these survival features, experts say that relatively simple personal and food hygiene measures can significantly reduce the foodborne transmission of noroviruses. Hospitals and other healthcare facilities also have a role to play in preventing transmission. They should focus on methods to limit the spread of the virus, such as isolating people with an infection.

In the vast majority of cases, a norovirus infection resolves itself within a few days and has no complications. Some people are unable to drink enough liquids to replace those that they lose through vomiting or diarrhea. They may become dehydrated and require special medical attention. Young children, older adults, and individuals of any age who need a caregiver are especially vulnerable. Learn more about managing dehydration here. Eating contaminated food can lead to diarrhea, nausea, vomiting, and abdominal pain.

It can also cause inflammation and develop into stomach flu. Rotavirus Gastroenteritis is a virus that infects the bowels and is most commonly found in unvaccinated children. It can cause severe, fatal…. Diarrhea, which refers to unusually loose or watery stools, is a common problem with many potential causes.

Several treatments can help.