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The virus of the swine flu |
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La Mañana 30 April 2009
IMPLICATIONS ON ANIMAL HEALTH AND PUBLIC HEALTH
Regarding to porks, influenza is a viral respiratory illness in all world regions with high pig density. It has a direct epidemiological connection with the movement of animals. The flu-like symptoms in pigs carry heavy economic losses in farms.  Read full new The virus of pork influenza (VIP) are genetically unstable, bringing an antigenic variation that influences in the clinical infections, in the efficacy of vaccinations and in the sensitivity of diagnostic tests. Viruses (VIP) can be transmitted to humans, most often in an asymptomatic way (without symptoms), including some serious consequences, declaring a zoonosis. The swine is receptive to both avian influenza and human viruses, constituting an important agent in the transmission between species and the formation of different or mutated virus. In recent history there have been two major pandemics influenza virus type A, in the early twentieth century, specifically in 1918-1919 the "Spanish flu" that caused more than 15 million deaths. The other, in 2003, in South Asia by avian viruses. |
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