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H1N1 Virus PDF Print E-mail

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H1N1 Virus

The H1N1 belongs to the family Orthomyxovirus; there are 3 types: A, B, and C. This virus causes Influenza, a respiratory disease with systemic symptoms. In the illustration you can see 2 types of proteins or antigens on the surface of the virus; the protein in gray-blue color represents protein H (Hemagglutinin), the protein in brown represents protein N (Neuraminidase). These 2 proteins, H and N, constantly recombine, and for this reason are assigned a number and form of different subtypes, for example, H1N1, H1N2, or H2N1, etc. In the illustration you can see a film of dark gray color where H and N unite, which is made up of lipid. Because the membrane is rich in lipid, the virus is susceptible to destruction of detergents.

When the virus binds to the cells of the respiratory system, it does so through protein H. The complete replication of the virus is 6 hours and it produces millions of viral particles between the first and 4th day of infection (in 1 milliliter of secretion there are approximately between 10,000 to 10,000,000 viral particles). The anti-virals block the output of the virus from the cell.

Dr. Roberto Trujillo ::
source: UNIVISION, Washingtion DC May 2009