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"Norovirus and food poisoning are easy to confuse as the symptoms are almost identical, including severe nausea, diarrhoea, stomach cramps and vomiting,” says Niamh McMillan, Superdrug's Pharmacy Superintendent. "Norovirus is the most common type of virus which causes gastroenteritis, an inflammation of the stomach and intestines. Norovirus is also referred to as the 'winter vomiting bug' due to its prevalence during the colder months, however, it can be caught at any time of the year." The expert goes on to…