Researchers Find Surprising Pattern of Influenza Spread in South America and Tropics – March 20, 2007


Researchers studying influenza transmission patterns in the Southern Hemisphere and in tropical areas, specifically Brazil, uncovered the unexpected finding that each season influenza travels from low populated regions near the equator to the more populated centers. Their work, funded by the Fogarty International Center (NIH), part of the National Institutes of Health (NIH), can improve planning for influenza control in tropical areas.

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