Where is H7N9 now?
Most human cases of H7N9 remain concentrated around Shanghai on China's eastern seaboard, but cases have also been detected in Beijing in the north, and Henan province in the center. (Size of red circles on the map is proportional to the number of human cases.)
Sources: Multiple, including WHO and Xinhua News Agency.
(To view this map in 3D, download map file and view in Google Earth, click here.)
Where might H7N9 go next?
Risk maps developed for human infection by another, well-established avian flu virus — H5N1 — may help to target H7N9 surveillance and control efforts. The map shows human cases of H7N9 (blue circles) superimposed on a risk map developed for H5N1, with light yellow representing lowest risk, and darker areas higher risk.
Sources: Martin, V. et al. PLoS Pathog. 7, e1001308 (2011).
(This is a large map and so may take several seconds to display in Google Earth. To download map file to view in Google Earth click here.)
Maps presented are for data-visualization purposes only; boundaries and names shown do not express any opinion on the legal status of any country, territory or the delimitation of territory boundaries.