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West Nile Virus

Additional Resources: State-level Web Sites

These State Web sites provide information on reported cases of equine West Nile virus in those States.

  • Arizona - West Nile virus cases in horses, humans, and other species by county
  • Arkansas - Summary of surveillance and testing by county of human, veterinary, and other cases of West Nile virus; 'veterinary' cases not limited to horses
  • California - Current and past summary of West Nile virus activity by county for horses, humans, and other species
  • Colorado - tables and interactive maps of West Nile virus activity in horses, humans, and other species for current and past years
  • Florida - summaries of arbovirus activity in horses, humans, and other species organized by county for current and past years
  • Illinois - maps and tables organized by county depicting positive West Nile virus cases in horses and other species for current and past years
  • Kentucky - yearly summaries and maps of equine West Nile virus cases
  • Louisiana - reports of West Nile virus cases in humans, horses, and other species by county
  • Maryland - summaries of arbovirus testing results in horses, humans, and other species for current and past years
  • Massachusetts - summaries of WNV and EEE surveillance for horses, humans, and other species for current and past years
  • Michigan - maps and tables with current year and archived positive human and veterinary West Nile virus cases
  • Minnesota - maps and tables with current year and archived surveillance for human, equine, and other West Nile virus cases
  • Mississippi - summary reports of West Nile virus and Eastern Equine Encephalitis cases by county for current and past years
  • Montana - tables organized by county and maps showing positive West Nile virus cases in horses, humans, and other species for current and past years;
  • Nebraska - tables and maps depicting current and archived human and equine West Nile virus cases
  • Nevada - tables and maps depicting equine West Nile virus cases by county from 2004 to 2006
  • New Jersey - summaries of current year and archived positive human and veterinary West Nile virus cases
  • New Mexico - Surveillance data by county for current and past human and equine West Nile virus cases
  • New York - tables organized by county showing positive West Nile virus cases in horses, humans, and other species for current and past years
  • North Carolina - maps showing veterinary cases by county through 2006
  • North Dakota - tables and summary reports of West Nile virus activity in horses, humans, and other species by county for current and past years
  • Ohio - maps and tables of current and past year West Nile virus activity in humans, horses, and other species by county
  • Oklahoma - maps and tables of confirmed West Nile virus cases in horses, humans, and other species
  • Oregon - maps and tables organized by county of positive West Nile virus cases in horses, humans, and other species for current and past years
  • Pennsylvania - maps and tables of West Nile virus cases by county in humans and horses for current and past years
  • South Carolina - maps and statistics of West Nile virus cases in horses, humans, and other species for current and past years
  • South Dakota - maps and tables organized by county depicting West Nile virus activity in horses, humans, and other species for current and past years
  • Tennessee - table showing positive West Nile virus cases for horses, humans and other species by county for the current and past years
  • Texas - annual summaries, tables, maps and statistics by county of West Nile virus cases in horses, humans, and other species for current and past years
  • Utah - tables organized by county showing positive West Nile virus cases in horses, humans, and other species for current and past years
  • Virginia - tables and maps by county of West Nile virus cases in horses, humans, and other species for current and past years
  • Washington - maps and tables showing West Nile virus cases in horses, humans, and other species for current and past years by county
  • West Virginia - equine data by county
  • Wisconsin - maps and tables showing West Nile virus cases in horses, humans, and other species for current and past years by county
  • Wyoming - table organized by county showing West Nile virus detections in horses, humans, and other species for current and past years


Additional Information