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Influenza update

12 October 2012 - Update number 170

• Open map in new window
  jpg, 470kb

Summary

• Seasonal influenza transmission has not been picked up yet in the northern temperate zone.
• In the tropical areas most countries are reporting low or decreasing trends of influenza virus detections. The exceptions are Costa Rica in the Americas and India; Nepal, Lao PDR and Thailand in Asia.
• In Sub-Saharan Africa, Cameroon has reported an increase in influenza virus detections.
• The influenza season seem to come to an end in the temperate countries of the southern hemisphere.

• -Full version Epidemiological influenza surveillance update
  pdf, 722kb

• - Virological influenza surveillance update

• - Peer-reviewed literature
  Impact of H1N1 on Socially Disadvantaged Populations: Systematic Review

Source of data

The Global Influenza Programme monitors influenza activity worldwide and publishes an update every two weeks.
The updates are based on available epidemiological and virological data sources, including FluNet (reported by the Global Influenza Surveillance and Response System) and influenza reports from WHO Regional Offices and Member States. Completeness can vary among updates due to availability and quality of data available at the time when the update is developed.

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