The H1N1 swine flu virus which swept the globe last year has returned to Britain with 10 people dying in the last six weeks. Britain's Health Protection Agency said the 10 deaths had occurred in adults all under the age of 65, most of whom had underlying health issues. In a statement, head of the HPA's respiratory diseases department, Professor John Watson, said over the last few weeks, they have seen a rise in the number of cases of seasonal flu both H1N1 (2009) and flu B in the community. He said reports have also been received of patients with serious illness requiring hospitalization and outbreaks of flu in schools across the country.H1N1 flu broke out in March 2009 and quickly spread across the world. The World Health Organization said about 18,450 people died from the virus, including many pregnant women and young people. WHO declared the pandemic over in August.