2009 Novel H1N1 Flu: International Situation Update: September 25, 2009

Details

• Journal Article:
  Human Influenza A (H1N1), 2009
• Corporate Authors:
  Centers for Disease Control and Prevention (U.S.)
• Description:
  This report provides an update to the international situation as of September 25, 2009. As of September 20, 2009, the World Health Organization (WHO) regions have reported at least 318,925 laboratory-confirmed cases of 2009 H1N1 with more than 3,917 deaths, which is an increase of at least 22,454 cases and more than 431 deaths since September 13th. The laboratory-confirmed cases represent a substantial underestimation of total cases in the world, as many countries focus surveillance and laboratory testing only on people with severe illness. The 2009 H1N1 influenza virus continues to be the dominant influenza virus in circulation in the world. From April 19 to September 12, 2009, 60.6% of influenza specimens reported to WHO were 2009 H1N1 viruses. In temperate regions of the Southern Hemisphere, disease due to 2009 H1N1 is largely declining. In tropical regions, there is still substantial disease due to 2009 H1N1. In temperate regions of the Northern Hemisphere, there is increased influenza like illness (ILI) activity due to 2009 H1N1, including in most of the United States, parts of Mexico and some countries in Europe.
• Subjects:
  Global Health Infection Control Influenza, Human Influenza A Virus, H1N1 Subtype Pandemics
• Series:
  2009 Novel H1N1 Flu: International Situation Update
• Document Type:
  Text
• Genre:
  Webpage
• Collection(s):
  Stephen B. Thacker CDC Library
• Main Document Checksum:
  urn:sha-512:60df5e077e22558ac4fca34fda266d099a80dfcd6e97a1098e24d0072c3594827a585e1d5abf4c2b1ed0a838dfaf6862a4968876de765973db0c77b95ed83e76
• Download URL:
  https://stacks.cdc.gov/view/cdc/113256/cdc_113256_DS1.pdf
• File Type:
  [PDF - 225.73 KB ]