The main symptoms of norovirus usually start suddenly and may include:
You may also have:
Although it's sometimes called the winter vomiting bug, you can get norovirus at any time of year.
If you or your child have norovirus, you can usually treat it at home.
You'll usually start to feel better in 2 to 3 days.
Speak to a pharmacist if you or your child (aged 5 years or over) have norovirus and:
They may recommend oral rehydration powder that you mix with water to make a drink.
Norovirus is caused by a virus that spreads through poo. It can spread to others very easily.
You can catch norovirus from:
There are things you can do when you have norovirus to help prevent infecting others.
wash your hands with soap and water after going to the toilet or changing nappies (alcohol hand gels do not kill norovirus)
wash your hands with soap and water before preparing, serving or eating food
wash clothes and bedding that has poo or vomit on it on a 60°C wash and separately from other laundry
clean toilet seats, flush handles, taps and bathroom door handles
avoid contact with others as much as possible
do not go to school, nursery or work until you have not been sick or had diarrhoea for 2 days
do not visit others in hospitals or places like care homes until you have not been sick or had diarrhoea for 2 days