Where is the influenza virus found?
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You do not categorize virus into hidden or active category. That way, every virus is hidden inside the cell. It can not grow outside the cell. Every virus is active. Otherwise it would have disappeared from the race of life. It is very interesting to know about the virus. Now you study it. Tomorrow the world will learn from you.
These influenza A virus strains are categorized according to the 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 differ from strain to strain due to rapid genetic mutation in the viral genome. Influenza A virus strains are assigned an H number and an N number based on which forms of these two proteins the strain…