The 2009 flu pandemic in the Philippines began on May 21, 2009, when a young Filipina girl first contracted the A(H1N1) virus while in the United States. In the following days, several local cases were reported to be caused by contact with two infected Taiwanese women who attended a wedding ceremony in Zambales. The 10-year-old Filipina girl arrived the country on May 18 and was hospitalized the day after at the Research Institute for Tropical Medicine in Muntinlupa. On May 21, Department of Health (DOH) secretary Francisco Duque confirmed the case being the first Philippine swine flu case.