Tests are to confirm later this week whether the woman was infected with the H5N1 avian flu virus. Bird flu has struck eleven provinces in Vietnam this year, killing tens of thousands of domestic fowl. So far, there have been four confirmed human cases of bird flu, three of whom have died. In 2008, six people contracted bird flu, five of them did not survive. Nguyen Huy Nga, the director of the Ministry of Health’s Preventive Medicine department, was quoted in the Gia Dinh & Xa Hoi newspaper as saying that all bird flu deaths occurred due to late hospital admission.