On August 9, 2009, reporters learned from the Health Department of Hunan Province on August 8 that an epidemic of H1N1 broke out in a secondary school in Yongzhou city of Hunan Province. Among the 13 suspected cases, 4 were confirmed. The head of Emergency Office of the Health Department of Hunan Province introduced that the school was located in the urban area of Yongzhou city. Since August 6, some students in this school....