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Swine Flu

Swine flu is a highly contagious human respiratory infection caused by a particular influenza virus strain H1N1 popularly. Swine flu viruses can sometimes come from other subtypes, such as H1N2, H3N1, and H3N2. The disease is spread among pigs by direct and indirect contact, aerosols and from pigs that are infected but do not have […]

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