How can individuals avoid contracting human H7N9 avian influenza? 1, good personal hygiene habits and food safety measures are prerequisites for the prevention of many infectious diseases such as H7N9 A. 2.Wash your hands frequently, especially before, between and after making food, before and after meals, after contact with animals and animal waste, and when your hands are dirty; wash your hands more frequently if someone in your family is sick. 3. Hand hygiene must be maintained in health care facilities to prevent the spread of viruses to other patients and health care workers. The mechanical action of hand washing can remove pathogens. Alcohol disinfection can kill pathogens. 4.When sneezing or coughing, cover your mouth and nose with a tissue. 5, In any environment where highly pathogenic avian influenza virus may be present, be sure to maintain hand hygiene (including hand washing and use of alcohol-based hand sanitizer) to prevent infection of the mouth, nose and conjunctiva through contact with hands contaminated by the virus. How can high-risk groups prevent human infection of H7N9 avian influenza? High-risk groups include: people engaged in poultry slaughtering, trafficking, cooking and other people who have close contact with poultry and poultry products; children, elderly people, people with chronic underlying diseases and other people with low immunity. It is recommended that the high-risk groups can use “Chinese herbal tea drink” for prevention if necessary. Prescription 1: Suitable for children aged 3 to 12 years old, consisting of 10g of rhizome and 3g of forsythia, 1 dose daily, steeped in boiling water. Prescription 2: For adults, it consists of 5g of Radix Bupleurum, 3g of Patchouli, 3g of Chrysanthemum and 5g of Radix et Rhizoma, 1 dose daily, steeped in boiling water. For the elderly and frail, people with chronic disease and Qi deficiency can add Yu Ping Feng San.