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People with regular exposure to pigs are at increased risk of swine flu infections. Around the mid-20th century, the identification of influenza subtypes was made possible, allowing accurate diagnosis of transmission to humans. Since then, only 50 such transmissions have been confirmed. These strains of swine flu rarely pass from human to human.
H3N1 is a subtype of the species Influenza A virus, mostly affecting pigs. The known subtypes of Influenza A virus that create influenza in pigs and are endemic in pigs are H1N1, H1N2, H3N1 and H3N2. [1] [2]
Between December 1988 and March 1989, 19 influenza H1N2 virus isolates were identified in 6 cities in China, but the virus did not spread further. [2]A(H1N2) was identified during the 2001–02 flu season (northern hemisphere) in Canada, the U.S., Ireland, Latvia, France, Romania, Oman, India, Malaysia, and Singapore with earliest documented outbreak of the virus occurring in India on May 31 ...
Everyone should get H1N1 flu shots, the feds say, yet media reports warn there may not be enough vaccine. Swine flu is being billed as a potential killer this winter, but health officials still ...
Some pigs infected with influenza, however, may show no signs of illness at all. Swine flu subtypes are principally H1N1, H1N2, and H3N2; [82] it is spread either through close contact between animals or by the movement of contaminated equipment between farms. [83] Humans who are in close contact with pigs can sometimes become infected. [84]
Most flu vaccine companies can not make both seasonal flu vaccine and pandemic flu vaccine at the same time. Production takes months and it is impossible to switch halfway through if health officials make a mistake. If the swine flu mutates, scientists aren't sure how effective a vaccine made now from the current strain will remain. [41]
HANOI/MANILA (Reuters) -The World Organisation for Animal Health (WOAH) is warning that more testing of African swine fever vaccines is needed, triggered by Vietnam's plans to export doses in ...
CHICAGO (Reuters) -H5N1 bird flu was confirmed in a pig on a backyard farm in Oregon, the first detection of the virus in swine in the country, the U.S. Department of Agriculture said on Wednesday.