Norta virus

You can get norovirus illness many times in your life because there are many different types of noroviruses. Infection with one type of norovirus may not protect you against other types. 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. Book a coronavirus booster vaccination. Norovirus causes diarrhoea and vomiting and is one of the most common stomach bugs in the UK. It's also called the 'winter vomiting bug' because it's more common in winter, although you can catch it at any time of the year. Avoid going to your GP, as norovirus can spread to others very easily. Some people also have a slight fever, headaches , painful stomach cramps and aching limbs.

The symptoms appear one to two days after you become infected and typically last for up to two or three days. You can catch it if small particles of vomit or stools poo from an infected person get into your mouth through:. Norovirus is most infectious from the start of symptoms until 48 hours after all symptoms have stopped.

You may also be infectious for a short time before and after this. 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.

Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website. You will be subject to the destination website's privacy policy when you follow the link. CDC is not responsible for Section compliance accessibility on other federal or private website. Cancel Continue. Norovirus, also called the "winter vomiting bug", is a stomach bug that causes vomiting and diarrhoea.

It can be very unpleasant, but usually goes away in about 2 days. The most important thing is to rest and have lots of fluids to avoid dehydration. Find out how to treat diarrhoea and vomiting in children and adults. Stay off school or work until you have not been sick or had diarrhoea for at least 2 days. This is when you're most infectious.