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Santa Clara County Health Department
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West Nile virus surge in North America, Europe, and Balkans
21 clusters · 298 sources · last updated
Latest: Kosovo confirms seven West Nile virus cases and two deaths
Public health agencies in North America, Europe, and the Balkans continue to report West Nile virus activity. In the United States, the CDC has reported 504 human cases across 41 states in 2026. While the total case coun