According to the national bird flu prevention headquarters offices for the person in charge of the bird flu virus in the concept of the H and N refer to the virus glycoprotein (protein), a glycoprotein called hemagglutinin (HA) and another called neuraminidase (NA).

    The official said that because the two glycoprotein is high variability, therefore, in accordance with the variation glycoproteins, HA H1 to H15 divided into 15 different types, NA N1 to N9 divided into nine different type. Here, with H5
The highly pathogenic H7 type.

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     Recently at the American Society for Microbiology and Infectious Diseases Society of the United States joint meeting, the experts warned that the influenza vaccine shortage incident has sounded the alarm for countries, which shows that the world are not yet ready to deal with bird flu and the next global pandemic.
Washington University School of Medicine, said Dr. Kathleen Neuzil, for a pandemic, countries need to prepare adequate vaccines and drugs, and the collection of influenza patients and the number of deaths data.
 
WHO influenza responsible for the work of the coordinator Klaus Stohl said, the last major outbreak of influenza has been 36 hours ago, it caused 32 deaths of bird flu H5N1 virus is likely that the source of the next pandemic.

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