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Influenza A virus or more known to us as H5N1 is an avian (bird) flu, an influenza A subtype that has caused outbreaks in domestic poultry in parts of Asia and the Middle East. This is deadly to them and is considered “highly pathogenic” meaning highly disease causing. Although the virus does not usually infect people but infectious that these viruses occurred in humans. Most of these cases have resulted from people having direct or close contact with H5N1-infected poultry or H5N1-contaminated surfaces.
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