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Map: International Co-circulation of 2009 H1N1 and Seasonal Influenza
(As of June 04, 2010; posted June 04, 2010, 4:00 PM ET)

This picture depicts a map of the world that shows the co-circulation of 2009 H1N1 flu and seasonal influenza viruses. The United States, Russian Federation, China, Japan, and India are depicted. 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 India in weeks 19 and 20 were 2009 H1N1 flu.