The experts clarify: The H7N9 bird flu human trasmission probability has not increased

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Original title: Does H7N9 send people to heaven the successor limitedly? The experts clarify: The probability has not increased Yangcheng Evening News news by Xia Yang Hong Kong sanitation protection Center sends a letter to Hong Kong doctor, Said that H7N9 or may send people to heaven successor limitedly! Whether is really so? Yesterday, when the Guangdong people infected the H7N9 bird flu to prevent and control the expert to accept the reporter interviewed do not approve this viewpoint, He thinks probability that at present the human teaches other people have not increased. According to the Hong Kong media, Hong Kong Infectious disease Society pointed out on behalf of Zeng Dexian, In the past H5N1 virus many only may make under the human body cell protein α- of respiratory tract 2,3 recognize, both can adhere in the same place, but the H7N9 virus presented the gene variation because of the Q226QL position, May make the upper respiratory tract cell protein α- 2,6 identifications unify, the virus has been possible to reproduce in the upper respiratory tract, this is similar to many seasonal flu viruses, when the human coughs, The virus may infect another person by the upper respiratory tract blowout, increases the person teaching other people opportunity. This means the risk that at present H7N9 virus person teaches other people are increasing? The Guangdong CSC chief expert and infectious disease prevention and control manager what Jianfeng does not approve. \"Compared with H5N1, H7N9 is truly closer to realizing the human teaches other people. But from the existing information judgment, the probability that the H7N9 bird flu virus person teaches other people have not increased, When H7N9 just appeared has made the genetic analysis, had not changed to the present regarding the person teaching other people possible judgment!\" He Jianfeng believes that The view of Hong Kong expert has not disclosed about the recent information of H7N9 virus, therefore is not new research results, With already has the WHO to be consistent regarding the judgment of H7N9 virus interpersonal dissemination ability. WHO spokesman Gregory Hartle once said on the 3 of the month that had discovered the H7N9 virus presents the variation, becomes is easy to infect the human body. Some experts said that now about 40% H7N9 bird flu patient not explicit feather contact history, therefore found its virus infection origin urgently needed. He Jianfeng said that now everybody quite approves, H7N9 virus important source in feather. \"Reason that presents 40% unclear about the patient of feather contact history, Is related with the limitation of inquiring survey, possibly patient had contacted the feather, but he has not perceived!\"

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