MMWR Morb Mortal Wkly Rep. 2004 Oct 8;53(39):922-3.
During September 29-October 5, a total of 81 cases of human West Nile virus (WNV) illness were reported from 18 states (Alabama, Arizona, Arkansas, California, Florida, Georgia, Illinois, Iowa, Kansas, Kentucky, Minnesota, Missouri, Ohio, Oklahoma, Pennsylvania, South Dakota, Texas, and Virginia).