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H7N9, China: 90-120 cases undetected (?)

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  • H7N9, China: 90-120 cases undetected (?)

    You may have followed an incorrect link from ProMED to this thread. Our H7N9 case list is here and shows 465 cases to date.

    Source: The Standard:

    H7N9, China: 90-120 cases undetected

    (April 22 2013)

    The severity of the new H7N9 bird flu increases with age, the Hong Kong University Public Health Research Centre and Centre for Influenza Research.

    A search by the centre suggested that 90 to 120 cases of human infection are not detected [???], said Gabriel Leung Cheuk-wai, head of the department of community medicine at HKU.


    Last edited by sharon sanders; December 10, 2014, 08:59 PM. Reason: added sentences at top due to incorrect link posted in ProMED today

  • #2
    Re: H7N9, China: 90-120 cases undetected (?)

    Source: RTHK:

    H7N9, Hong Kong, at least about one hundred the H7N9 mild cases of undetected

    2013-04-22 HKT 11:08

    Gabriel Leung nearly 100 cases of H7N9 mild cases of undetected

    The HKU Public Health Research Center and the Influenza Research Center held a press conference (Zhuangde Xian Chang)

    Hong Kong Public Health Research Influenza Research Center study found that the severity of the H7N9 avian influenza, a significant increase with increasing age.

    The center's analysis found that at least 90-120 mild cases of human infection in the population has not yet been found, it is recommended to begin an exhaustive serum epidemiological studies in a timely manner, the center also proposes strengthening surveillance of the imported birds.



    • #3
      Re: H7N9, China: 90-120 cases undetected (?)

      H7N9 Cases May Be Double Known Figure, Hong Kong Researchers Say H7N9 bird flu may have infected twice as many people as the 103 cases reported, an analysis by researchers at the University of Hong Kong showed.
      There may be 90 to 120 ill adults who haven?t been detected because their infections are mild, Benjamin Cowling, associate professor at the university?s public health research center, said today. The researchers? analysis suggests risk of serious illness from the virus rises substantially with age, with more than half of reported cases age 60 or older, he said.
      Flu specialists including those from the World Health Organization are investigating how people are catching the H7N9 virus, with no evidence yet of sustained human-to-human transmission. Disease trackers haven?t been able to figure out why another deadly bird flu strain known as H5N1 afflicts mostly younger people in their 20s and 30s, while H7N9 mainly targets the elderly.
      ?One thing that is very .