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CIDRAP FLU SCAN: H3N2v cases in Michigan; Influenza A vs B in kids

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  • CIDRAP FLU SCAN: H3N2v cases in Michigan; Influenza A vs B in kids

    Source: http://www.cidrap.umn.edu/news-persp...an-aug-19-2016


    Flu Scan for Aug 19, 2016
    H3N2v cases in Michigan; Influenza A vs B in kids

    Filed Under:
    H3N2v Influenza; Influenza, General


    Eight sick with H3N2v after visiting Michigan county fairs

    Eight people who visited Michigan county fairs in July and August have become infected with variant influenza A H3N2 (H3N2v), according to the Michigan Department of Health and Human Services and Michigan Department of Agriculture and Rural Development.
    One person was hospitalized but has been released.
    The people contracted the flu at county fairs in Ingham, Muskegon, and Cass counties, where state officials found several pigs that tested positive for H3N2v. Humans can become infected with swine-origin flu like the H3N2v strain, for example, when pigs sneeze and release droplets of influenza virus that land in a person's eyes or mouth. Most cases of H3N2v in humans are mild.
    Michigan officials warned fair exhibitors and animal caretakers to practice good hygiene, including disinfection of animal weight scales and wash areas. They also remind fairgoers to avoid eating or drinking near livestock and to wash hands after visiting animal exhibits.
    Aug 19 Michigan press release

    Canadian study finds flu B deadlier than flu A in kids

    Influenza B causes higher death rates in children than the more common influenza A, according to a study from Canadian researchers published this week in Pediatrics.
    The investigators analyzed data on 1,510 children hospitalized with influenza B and 2,645 children hospitalized with influenza A from eight non-pandemic flu seasons from 2004 to 2013. Median age was young: 3.9 years for the former group and 2.0 for the latter.
    The team found that 1.1% of the flu B and 0.4% of the flu A patients died, meaning that patients in the former group were almost three times more likely to die from their infection. Among healthy children with influenza B, those 10 years or older, compared with babies younger than 6 months, had an almost sixfold-greater risk of admission to an intensive care unit.
    The researchers also determined that, compared with influenza A patients, influenza B patients were more likely to have a vaccine-indicated condition, and symptoms more often associated with influenza B were headache, abdominal pain, and muscle aches.
    Aug 17 Pediatrics abstract










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