Avian Influenza Surveillance in the Danube Delta Using Sentinel Geese and Ducks

<table>Sentinel bird surveillance sites in the Danube Delta are represented by black rectangles, Tulcea County, Southeastern Romania. In 2011, the Periprava site was discontinued and the Letea site was added.</table>

Influenza Research and Treatment

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Figure 1

Figure 1: Avian Influenza Surveillance in the Danube Delta Using Sentinel Geese and Ducks 