Global influenza virus travels and draws the latest street map
According to the Xinhua News Agency ' Reporter Zhang ZhongXia) An international research group says on the 17th, seasonal poisonous one of influenza virus usually appears in Asia at first, then reach the other areas of the world within several months. This is that the latest seasonal influenza virus which a scientist obtains propagates the street map.
The scientists from Europe, Australia, Japan and U.S.A. have carried on research in reaching 13,000 samples from H3N2 inferior type influenza virus of all parts of the world. H3N2 is A type ' First type) One of influenza virus is inferior type, lead to the fact too the main influenza that the mankind catches an illness even dies is inferior type at present.
The scientist says on new American Science, they analyze " hemagglutinin " of surface protein of the virus sample (the red blood cell is condensed plainly) During difference,and not last virus last code " hemagglutinin " Gene sequence. " hemagglutinin " Play an important role in propagating the course among persons of virus, rely on " hemagglutinin " correctly Analysis,scientist for the influenza virus maliciouses news of place can recognising. The analysis results show, poisonous one appears in East Asia and Southeast Asia in the annual H3N2 virus, and spread there alternately. Poisonous one is making a variation constantly, reach Europe and North America after from 6 months to 9 months. Later, the virus continued propagating to South America, had usually stopped gradually promptly after arriving in South America.
The research group says, according to spread route of influenza virus, should strengthen the influenza epidemic situation to East Asia and Southeast Asia to monitor especially.
Global influenza virus travels and draws the latest street map
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