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Map: International Co-circulation of 2009 H1N1 and Seasonal Influenza
(As of July 19, 2010; posted July 19, 2010, 5:00 PM ET)

This picture depicts a map of the world that shows the co-circulation of 2009 H1N1 flu and seasonal influenza viruses. Brazil, Cameroon, China, Ghana, India, Singapore, and South Africa 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 25 and 26 were 2009 H1N1 flu.