Eight more Taiwanese students who traveled on two recent graduation tours to Thailand were confirmed to have been infected with swine flu upon their return, bringing to 11 the total number of influenza A(H1N1) infections recorded in the groups, the Central Epidemics Command Center (CECC) said Wednesday. The two separate tour groups, comprising a total of 74 members, were in Thailand June 1-7, staying mainly in Bangkok and Pattaya. The groups were organized by the same Thai travel agency and met while in Thailand. The guide for one of the tours, who first displayed flu-like symptoms but later recovered, is the suspected origin of the mass infection. The first three confirmed cases were reported by the CECC Tuesday, including two who were detected with fevers upon their arrival at the Taiwan Taoyuan International Airport June 7. According to the CECC, 32 cases of influenza A (H1N1) have been recorded in Taiwan so far, only one of which has been indigenous. Data from the World Health Organization shows that as of June 8, 73 countries had officially reported 25,288 cases of swine flu infection, including 139 deaths. 