H7N9 avian influenza in the past only caused avian morbidity or cause avian epidemic, rarely infected people, the emergence of human H7N9 avian flu cases in East China is H7N2 and H7N9 two virus gene fragments integrated after the mutation of human infection, but the source of infection and transmission is not particularly clear, there is no evidence of human-to-human transmission. The clinical symptoms are similar to other influenza A. Serious complications can occur in severe cases, and death can occur if treatment is not timely. 1, there is no preventive vaccine, so we should pay attention to physical exercise, strengthen nutrition, to increase the body resistance; 2, before meals, after the stool should be diligent hand washing; 3, coughing, sneezing should be covered with tissue paper, and then the secretions wrapped in tissue paper, discarded into the garbage, or burned with fire, and then should wash their hands; 4, after the disease, should be timely consultation, to avoid delays in diagnosis and treatment; 5, do not go to densely populated areas Do not keep birds and pets, do not touch dead animals, especially dead wild birds or other dead animals, do not slaughter animals yourself; 7, eat poultry and other meat, must be cooked, raw and cooked should be absolutely separate, try not to eat cold animal offal; 8, no family members with colds, there is no need to prevent through drugs.