Avian influenza: doubts about Shishou vaccine in Hubei Province

Introduction: 5:30 p.m on November 22, shaanzi health center, Tianezhou Development Zone, Shishou City, Hubei Province A motorcycle stopped at the door Doctor Tang of the health center pointed to the thin and small middle-aged man who got off the bus and said to the reporter, "he is Hu Xuewen." The humble "little man" is the famous local "boss of goose" On the evening of November 20, the Ministry of Agriculture announced that 3500 geese in Swan Island Development Zone of Shishou City died of highly pathogenic avian influenza after being confirmed by the National Avian Influenza Reference Laboratory This farmer means Hu Xuewen What also surprised reporters was that Hu Xuewen, who was in isolation, could ride a motorcycle everywhere "According to the regulations, he can only move within three kilometers," explained Peng, the head of the health management station in the development zone Tianezhou development zone is located in the north of Shishou City and across the Yangtze River from the county This development zone is basically surrounded by the old road of the Yangtze River, surrounded by water on three sides There are more than 20000 mu wetlands in the development zone In November 1991, Hubei Province established the elk (so-called "four unlike") Nature Reserve here, and then upgraded it to a national nature reserve Hu Xuewen's goose shed is built at the entrance of qianduizi village on the other side of the Development Zone, only one river away from the development zone The water and grass here are luxuriant, and they are natural pastures Hu Xuewen, nearly 50 years old, is a well-known local geese farmer He has been raising geese for nearly 20 years, raising tens of thousands of geese every year Last year, he asked more than ten people to help him release the goose According to Hu, his geese began breeding in late May this year In early September, Hu Xuewen once herded them to the paddy field of Jiangling County to raise them In the middle of October, they rushed back to the nearby Sancha port for stocking At the end of 10, the geese came to qianzidou ferry for stocking Among the geese of Hu Xuewen's family, nearly 4000 were hatched by Hu himself, and more than 4000 were only purchased from other geese As of the date of onset, there were 7262 Adult Geese in total The geese, who had been vaccinated against gosling plague at the time of sale, were in good health by November 2, and the death began with the injection of avian influenza vaccine On November 2, Hu Xuewen's geese were inoculated with "inactivated oil emulsion vaccine of goose paramyxovirus and goose flu" The vaccines were produced by the Institute of biological products, Yangzhou University At that time, 80 bottles of vaccine were shared, and each bottle could immunize 100 geese The next day after inoculation, the geese began to develop disease On November 4, only two or three died; on the next day, there were about ten; on the third day, there were twenty or thirty By November 7, there were a lot of deaths On November 10, Hu Xuewen's geese continued to die However, Hu Xuewen reported the outbreak to the veterinary station of the development zone of Swan Island On the afternoon of the 10th, the local veterinary station came to check On November 11, Shishou Animal Husbandry Bureau sent people to the scene to collect disease samples The local government asked to burn all the dead geese Hu Xuewen firmly disagreed because there was no compensation On November 15, the collected disease samples were sent to the animal husbandry department of Hubei Province for identification At this time, Hu Xuewen's goose is still dying By November 16, 3130 geese had died This number is different from the 3500 released by the Ministry of agriculture For this reason, rongquanzhong, a spokesman for the prevention and control of bird flu in Shishou City, said he was unclear As for the cause of the epidemic, Rong Quanzhong told Caijing that there are only two possibilities One is the quality of the vaccine Hubei Province has organized an investigation team to investigate, and the vaccine has been sent to the Ministry of agriculture for testing Second, the wild birds in Swan Island are infected with virus On October 17, Hubei Provincial prevention and control headquarters identified the geese as "suspected avian influenza" On the same day, Zhou Xiaoqing, deputy mayor of Shishou City, rushed to the scene and promised Hu Xuewen that all the live birds of Hu's family would be killed and counted, and then burned and buried on the spot According to local villagers, when the geese began to die, some villagers took them home to cook Hu Xuewen didn't care at that time He also brought the dead goose back to his hometown, three kilometers away from the goose shed Later I heard that it might infect people Hu and his brother buried the dead goose on the spot Since the evening of October 19, Shishou City has organized 60 veterinarians and 120 staff members to conduct compulsory immunization of nearly 200000 poultry from the outside to the inside in 11 villages 5 kilometers around the epidemic area and vaccinate them against avian influenza The reporter saw on October 23 that a box of vaccines of Harbin Vico Biological Products Co., Ltd was stacked in the vaccine warehouse on the second floor of Shishou Animal Husbandry Bureau, while the staff were still delivering them to the outside Like all epidemic areas, farmers in Shishou City suffered heavy losses due to forced killing According to the standard of Shishou City, no matter chicken, duck or goose, 10 yuan will be compensated Rong Quanzhong, a spokesman for Shishou City News Agency, told reporters that Hu Xuewen's goose died without compensation According to Hu Xuewen, the cost of raising a goose is about 60 yuan, while the government's compensation is less than one sixth of the cost In the interview, Xiang Dao, director of Shishou Animal Husbandry Bureau, told Caijing: "in Shishou City, there are more than 300 farmers like Hu Xuewen, each of whom has invested at least 300000 yuan According to the regulations, 10 yuan will be subsidized for killing each poultry, and each poultry will be up to most of the 10000 yuan, which means that the loss of breeding households in the city will reach 72 million yuan " According to Cao Guoliang, Hu Xuewen's assistant, he can earn nearly ten thousand yuan a year and five or six thousand yuan for the other four people Hu Xuewen's goose was infected with avian influenza this time He had been busy for more than half a year, but his salary may have been lost These five people were very depressed Fortunately, Hu Xuewen and other seven people are in good health at present The local health department took jingangzhuan for them and other close contacts, and measured the temperature twice a day As of the 22nd, it had been more than 7 days, and no cold or fever was found No fever or flu like symptoms were found in 5773 people in the epidemic area.