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Map: International Co-circulation of 2009 H1N1 and Seasonal Influenza
(As of August 6, 2010; posted August 9, 2010, 4:00 PM ET)

This website is archived for historical purposes and is no longer being maintained or updated. For updated information on the current flu season, see the CDC Seasonal Flu website.

This picture depicts a map of the world that shows the co-circulation of 2009 H1N1 flu and seasonal influenza viruses. Australia, Chile, China, Ghana, Kenya, New Zealand, and Thailand are represented. There is a pie chart for each that shows the proportion of laboratory-confirmed influenza cases that have tested positive for either 2009 H1N1 flu or other influenza subtypes. The majority of laboratory-confirmed influenza cases reported in Australia, Chile, and Ghana in weeks 28 and 29 were 2009 H1N1 flu.

 
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