West Nile Virus (WNV) – Update

219 deaths caused by WNV infections in the U.S. (YTD)

As of October 23, 2012,  five thousand two hundred and one [4,725 cases tabulated] human West Nile virus infections have been reported to CDC ArboNET from Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.

• About 35% of the total cases were reported from Texas.

U.S. Update: West Nile virus (WNV) activity reported to ArboNET

Neuroinvasive disease cases comprise 51% of the reported total for the year with the remaining 49% recorded as nonneuroinvasive disease cases. Five hundred and sixty two WNV presumptive viremic blood donors (PVDs) have been reported at this time, CDC said.

Incidence by state map data description: West Nile virus neuroinvasive disease incidence maps reflect surveillance reports released by state and local health departments to CDC’s ArboNET system for public distribution. Map shows the incidence of human neuroinvasive disease (encephalitis, meningitis, and/or acute flaccid paralysis) by state for 2012 with shading ranging from .01 to 0.24, 0.25 to 0.49, 0.50 to 0.99, and greater than 1.0 per 100,000 population.

Related Links

• WNV Infections Continue Rising Posted October 22, 2012
• Rising Threat of Fungal Infections: Exserohilum Rostratum Posted October 11, 2012

• West Nile Virus Activity Intensifying Posted October 1, 2012

• United States: West Nile Virus (WNV) – [UPDATED Sept 20, 2012]
• WNV Cases Climb 71%, Deaths Up 89% Posted September 6, 2012
• U.S. Facing Worst Ever WNV Outbreak  Posted August 25, 2012