Description of the swine flu caused by influenza virus Orthomyxoviridae which is endemic in swine populations. Pigs can accommodate a flu virus that originated from humans or birds, which allows viruses to exchange genes and create a pandemic strain. swine flu caused by a virus known subtypes of influenza A H1N1, H1N2, H3N1, H3N2, and H2N3.
Naming the disease is considered wrong by many people, because society has made the wrong idea – that pigs can transmit the disease to humans. To that end, the World Health Organization (WHO) changed the name of this illness with influenza A (H1N1) from 30 April 2009.
Swine flu infecting humans each year and are usually found in people who came into contact with pigs, although it also found cases of transmission from human to human.
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