In the UK, the first case of Influenza A H1N1 was confirmed on 27th April 2009. The first wave of the pandemic in UK started in July 2009 with the second wave from September 2009 and carrying on over the winter months. The vast majority of patients in the first wave in the UK experienced mild illness with 50% of patients recovering within 7 days of symptom onset and a further 25% within 10 days. The main symptoms reported were fever, fatigue, dry cough, sore throat and headache. However, severe gastrointestinal disease (nausea, vomiting, diarrhoea, abdominal pain) has been a feature of H1N1 infection in children and adults requiring admission [6, 7] .