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Mr Sexton was taken to St Mary's Hospital with gastroenteritis at the beginning of September.

Health and food safety officials in the city state are investigating the incident, which left 60 people with symptoms of gastroenteritis on Tuesday.

C. diff infection is the leading cause of death due to gastroenteritis in the U.S.

According to the National Institutes of Health, “Sapovirus infections are responsible for both sporadic cases and occasional outbreaks of acute gastroenteritis.”

According to the World Health Organisation, Campylobacter infections are the most common causes of human bacterial gastroenteritis in the world.