Twenty-four states have reported detecting West Nile virus (WNV) in 2006, according to the latest data reported on the U.S. Geological Survey web site (last updated June 27). The disease has infected horses in four states: Iowa, North Dakota, Wisconsin, and Wyoming.


Human cases have been reported from Colorado, Mississippi, and Texas, and according to the Centers for Disease Control, no human fatalities due to WNV have been reported this year.


Officials have found WNV in birds in Arkansas, California, Florida, Idaho, Illinois, Iowa, Michigan, Minnesota, Missouri, Nebraska, New York, North Dakota, Oklahoma, Texas, Utah, West Virginia, and Wisconsin. The disease also has been detected in mosquito pools collected in California, Idaho, Illinois, Indiana, Minnesota, Missouri, Ohio, Oklahoma, South Dakota, Tennessee, Texas, and Utah.


According to news reports published after June 27, new human cases have emerged in Kansas and Nebraska, and officials have found infected mosquitoes in Michigan and Virginia

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