According to the Hunan Provincial Health and Family Planning Commission, as of February 4, 2017, Hunan Province reported a total of 19 cases of human infection with H7N9 influenza in 2017, and 5 deaths. According to Liu Fuqiang, director of the Emergency Management Office of the Hunan Provincial Center for Disease Control and Prevention, the number of H7N9 cases reported in Hunan recently increased significantly compared with the same period of previous years. The epidemic is characterized by early occurrence and aggressiveness. The cases have basically had live poultry or live bird trading market exposure history.
Liu Fuqiang analyzed that the increase in the H7N9 epidemic in Hunan Province was related to the increase in live poultry consumption and the ineffective implementation of live-bird market management. Winter is the season with high poultry consumption. In the case of high poultry and related environmental poisoning, the population has increased exposure and infection. Surveys have shown that there are fewer cases of disease in regions that have closed the live poultry market and strict market management, and areas where there are a large number of reported cases are often those where active live animal transactions are active and where live poultry market management measures are not implemented.
The Hunan Provincial Center for Disease Control and Prevention predicts that the current H7N9 epidemic situation is still spreading, with a wide distribution of epidemics. Environmental monitoring of live poultry markets shows that the positive rate of nucleic acid in specimens is high. During the Spring Festival, the poultry consumption heat rises further and may continue to occur after the Spring Festival. The H7N9 epidemic does not rule out the possibility of other subtypes of human beings infected with avian influenza. The incidence will exceed the level of the previous two years. The epidemic situation is more severe than in previous years.
Human infection H7N9 influenza similar to the flu in the early stages of the performance of the disease, manifested as fever, cough, may be associated with headache, muscle aches and general malaise, may also have runny nose, sore throat and so on. Some patients with severe pulmonary lesions or rapid development of the disease, there will be chest tightness and breathing difficulties and other symptoms, severe cases will quickly develop into a severe hypoxic state and respiratory failure, and even lead to death.
Liu Fuqiang reminded that as far as possible, avoid direct purchase of live poultry, direct contact with live poultry, and slaughter of live poultry on their own, try to purchase fresh, live, frozen poultry and their products with quarantine certificates. Do not purchase live poultry from mobile stalls and do not purchase live poultry and poultry from the live poultry market or mobile vendors. The vast majority of H7N9 cases are caused by the purchase of live poultry from mobile vendors or the importation of exotic birds. Exposure to infected poultry caused polyculture.
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