First, the virus characteristics
Influenza A H7 virus is usually a group of influenza viruses that spread in birds. Influenza A virus (H7N9) belongs to a subpopulation of the H7 virus family. Although occasionally there are reports of certain H7 viruses (H7N2, H7N3, H7N7) infecting humans, there have been no reports of human infection with H7N9 viruses until recently there were reports of human infections.
Second, the virus's adaptability
Bird flu viruses are generally sensitive to heat and have strong resistance to low temperatures. They can be inactivated by heating at 65°C for 30 minutes or boiling (100°C) for more than 2 minutes. The virus can live for 1 week in the lower temperature feces and 1 month in the water at 4°C.
Third, the transmission route
In addition to being transmitted through the respiratory tract, infections such as infected poultry secretions or excretions can also be infected. Direct contact with the virus can also be infected.
Fourth, prevention and control measures
Although the source of the infection and the mode of transmission cannot be determined, taking the following measures is an effective measure to prevent infection:
1. No fresh, live or frozen poultry and livestock products without quarantine certificates will be purchased without contact or disease (dead) poultry or meat.
2, raw poultry, meat and eggs must be cooked thoroughly.
3, in the food processing, edible process, must be separated from raw and cooked, to avoid cross-contamination, handling poultry, animal meat, chopping board, knives and containers can not be used for cooked food;
4, to maintain good personal hygiene habits, do not drink raw water.
5. Keep your hands clean and wash your hands often. Before and after food preparation, during production, and after preparation, wash your hands after handling meat and raw eggs.