Novel H1N1 flu : international situation update ; August 7, 2009
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Novel H1N1 flu : international situation update ; August 7, 2009

Filetype[PDF-213.16 KB]

  • English

  • Details:

    • Journal Article:
      Human Influenza A (H1N1), 2009
    • Description:
      This situation report provides an update to the international situation as of August 4, 2009. World Health Organization (WHO) regions have reported 162,380 laboratory-confirmed cases of novel influenza A (H1N1) and 1,154 deaths. The laboratory-confirmed cases represent an underestimation of total cases in the world as many countries have shifted to strategies of clinical confirmation and prioritization of laboratory testing for only persons with severe illness and/or high risk conditions. The novel influenza A (H1N1) virus is the dominant influenza virus in circulation in the United States, England, South Africa, New Zealand, Australia, Chile, Argentina and Brazil. South Africa has had a notable increase in the proportion of influenza that is novel influenza A (H1N1), and now it represents the majority of influenza in the country. Many seasonal influenza viruses from these countries have not been subtyped. Of those that have been subtyped in Australia, South Africa, and Argentina, the most common seasonal influenza virus is influenza A (H3N2).
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