tag:blogger.com,1999:blog-1787854880235215455.post8402118975688326584..comments2023-10-12T06:23:48.131-07:00Comments on Swine Flu Info Blog: What Is The Origin Of The Name H1n1 Virus?Swine Flu Info Bloghttp://www.blogger.com/profile/15650618820597564056noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-1787854880235215455.post-78608757190214479892009-06-02T23:17:46.000-07:002009-06-02T23:17:46.000-07:00H1N1: the H means hemagglutanin and the N is neuro...H1N1: the H means hemagglutanin and the N is neurominadase, the 1 is the way these structure looks. Hemagglutanin and neurominadase are antigens. Hemagglutanin binds RBCs and receptors on the respiratory mucosa. Neurominadase hydrolyzes (deslimes) mucus coating of the respiratory tract and unglues viral bundles so that the particles can infect cells.Shahananoreply@blogger.comtag:blogger.com,1999:blog-1787854880235215455.post-49710478524575901202009-06-02T16:29:30.000-07:002009-06-02T16:29:30.000-07:00Some strains of H1N1 are endemic in humans, includ...Some strains of H1N1 are endemic in humans, including the strain(s) responsible for the 1918 flu pandemic which killed 50–100 million people worldwide. Less virulent H1N1 strains still exist in the wild today, worldwide, causing a small fraction of all influenza-like illness and a large fraction of all seasonal influenza. H1N1 strains caused roughly half of all flu infections in 2006. Other strains of H1N1 are endemic in pigs and in birds.Penguinnoreply@blogger.comtag:blogger.com,1999:blog-1787854880235215455.post-31826037607889721682009-06-02T16:25:43.000-07:002009-06-02T16:25:43.000-07:00The nomenclature 'H1N1' is best described ...The nomenclature 'H1N1' is best described as scientific jargon, unlike the media's usage of the appellation 'swine flu'... "Transmission of swine influenza virus from pigs to humans is not common and does not always cause human influenza, often only resulting in the production of antibodies in the blood."<br>"Influenza A virus strains are categorized according to two proteins found on the surface of the virus: hemagglutinin (H) and neuraminidase (N). All influenza A viruses contain hemagglutinin and neuraminidase, but the structure of these proteins differs from strain to strain due to rapid genetic mutation in the viral genome.<br>Influenza A virus strains are assigned an H number and an N number based on which forms of these two proteins the strain contains. There are 16 H and 9 N subtypes known in birds, but only H 1, 2 and 3, and N 1 and 2 are commonly found in humans."Chemistnoreply@blogger.com