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Wednesday, April 17, 2013

IF..

Virus induced by mutation of the possibility of human-to-human transmission is increased
2013-04-18 09:00:04 Hangzhou
Yesterday, the Hong Kong Economic Times "reported for the H7N9 avian flu, the Hong Kong Centre for Health Protection issued a letter to all the doctors in Hong Kong, referring to the deadly new virus or limited human-human transmission. Tsang Tak-yin, on behalf of the Hong Kong Society for Infectious Diseases, said the H7N9 virus because of the the Q226L location of genetic variation, the virus can multiply in the upper respiratory tract, which is similar with a lot of seasonal influenza viruses, so when the person coughs, the virus can be upper respiratory tract spray infected with another one to increase the opportunities for human-to-human transmission. But Tsang Tak-yin, genetic mutation of the virus, at present, can theoretically increase the opportunities for human-to-human transmission, but yet see the emergence of the virus on the behavior of human-to-human transmission, so we must carry more Epidemiological and laboratory research.
To solve this problem, the reporter interviewed the deputy director of the Center for Disease Control and Prevention of Disease Control and Prevention of Zhejiang Province CHEN En-fu, he said, the virus has been in the variation, but no evidence of human infection with the H7N9 avian influenza virus is infect humans, The survey results show that poultry infect humans. Although a wide range of human transmission of H7N9 virus is unlikely, but if the virus continues to mutate, then the situation may change.The same time, CHEN En-fu, deputy director of the H7N9 avian influenza people are concerned about the four focus answered their questions.
Q: Hong Kong media reported the H7N9 virus or limited human-human transmission, does that mean that human-to-human transmission of H7N9 will? Our province detected, how?
Answer: because in Hong Kong found no cases of H7N9 avian influenza, so he is based on cases in the Mainland, from the gene sequence, bit become analyzed. Although the in Q226L position on ge..