Gastroenteritis is an infection of the stomach and large intestine.
The two most common causes of gastroenteritis in adults in England are the norovirus and food poisoning, according to the NHS.
Common symptoms include vomiting, diarrhoea and dehydration.
More top news
After the Indiana polls close, ITV News asked Ted Cruz supporters if they could back Donald Trump as the Republican presidential nominee.
With his massive victory in Indiana, Donald Trump can now not be stopped from becoming the Republican nominee.
Donald Trump is predicted to win the crucial Republican Indiana primary, US media have projected.