The source of H7N9 avian influenza infection is not yet clear, which inevitably causes panic. The National Health Planning Commission issued the H7N9 avian influenza diagnostic criteria, we can carry out self-health testing to eliminate unnecessary doubts. H7N9 susceptible and high-risk groups: mainly those engaged in poultry breeding, sales, slaughtering, processing industry, and a history of contact with birds and their secretions and excretions within 1 week before the onset of the disease. Clinical manifestations of H7N9: According to the incubation period of influenza and the findings of existing cases of H7N9 avian influenza virus infection, the incubation period is generally less than 7 days, and the main manifestations are: fever, cough and other symptoms of acute respiratory tract infection, especially high fever and respiratory difficulties will occur. 1, flu-like symptoms, such as fever, cough, little sputum, may be accompanied by headache, muscle aches and general discomfort. 2.Seriously ill patients develop rapidly and show severe pneumonia, with body temperature mostly persisting above 39℃ and respiratory distress, which may be accompanied by hemoptysis. 3, can rapidly progress to acute respiratory distress syndrome, mediastinal emphysema, sepsis, shock, impaired consciousness and acute kidney injury. H7N9 avian influenza treatment: In April 2013, as the Ministry of Health released that the H7N9 virus is sensitive to Tamiflu, so the initial determination was made for antiviral treatment with Tamiflu. Li Lanjuan, a member of the Chinese Academy of Engineering and director of the State Key Laboratory of Infectious Disease Diagnosis and Treatment, said, “In addition to Tamiflu, there are two other drugs, zanamivir and panamivir, that are effective in treating the H7N9 virus. However, all three drugs are prescription drugs and cannot be purchased at will in pharmacies.” H7N9 avian influenza vaccine: On H7N9 avian influenza cases currently no targeted vaccine, Zhong Nanshan said in an interview with the Beijing Times, “The development of a vaccine does not lie in the accumulation of cases, but to see the necessity. If it is really epidemic and then developed, if itself is epidemic, developed useless. Now that the sequence analysis of the H7N9 influenza gene has actually been clarified, if we really need to make a vaccine in the future, we may be able to get started relatively quickly. Now whether the H7N9 virus will be epidemic is not known, so talk about a vaccine.” China’s H7N9 avian influenza epidemic continues to expand, the CDC and Japan said respectively, is closely monitoring the new species of avian influenza in China, has begun to prepare the relevant vaccine development work in case of emergency. H7N9 avian influenza prevention: The National Health and Family Planning Commission introduced the following measures as effective measures to prevent infection, although the source and mode of transmission of infection is still uncertain: 1, do not contact, do not eat sick (dead) poultry, livestock meat, do not buy fresh, live, frozen poultry and livestock and their products without quarantine certification. 2, raw poultry, livestock meat and eggs must be cooked thoroughly. 3, in the food processing, consumption process, must be separated from raw and cooked, to avoid cross-contamination, handling raw poultry, livestock and meat of the case, knives and containers can not be used for cooked food. 4, to maintain good personal hygiene habits, do not drink raw water. 5, maintain hand hygiene, wash your hands often. Before making food, in the production and after making, before and after meals, after handling raw poultry and livestock meat and raw eggs are to wash their hands, etc.