The information contained within this update is obtained from data provided by Ministries of Health of Member States and National Influenza Centers through reports sent to Pan American Health Organization (PAHO) or updates on their web pages.

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Weekly Update

• In North America, acute respiratory disease activity continued to decrease and is lower than expected in some areas
• In the Caribbean, all countries reported unchanged and decreasing trends in acute respiratory disease
• Central America reported decreasing or unchanged trends in acute respiratory disease
• South American countries reported mostly decreasing trends of acute respiratory disease
• A median of 99.6% of subtyped influenza A viruses in North America were pandemic (H1N1) 2009
• Since December 18th: 203 new confirmed deaths in 8 countries were reported; in total there have been 6,880 cumulative confirmed deaths
  

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