CDC: West Nile Virus - Statistics, Surveillance, and Control > Any Activity by State Maps 2012

CDC: West Nile Virus - Statistics, Surveillance, and Control > Any Activity by State Maps 2012

Statistics, Surveillance, and Control

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West Nile virus (WNV) activity reported to ArboNET, by state, United States, 2012

* Includes WNV human disease cases, presumptive viremic blood donors, veterinary disease cases and infections in mosquitoes, birds, and sentinel animals.
† Presumptive viremic blood donors have a positive screening test which has not necessarily been confirmed.

Map shows the distribution of WNV activity* (shaded in light green), human infections (dark green circles), and presumptive viremic blood donors (dark green triangles) occurring during 2012 by state. If West Nile virus infection is reported from any area of a state, that entire state is shaded.

Data table:

Non-human West Nile virus infections have been reported to CDC ArboNET from the following states:

Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, 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.

Six thousand two hundred and seventy nine human West Nile virus infections were reported to CDC ArboNET from Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, 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, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.

USGS: CDC Arbonet Maps provided by USGS

For information on WNV activity in Canada please see:http://www.phac-aspc.gc.ca/wnv-vwn/index.html

WNV Surveillance Maps Detailing Human and Animal Activity Additional Years:

For archived surveillance pages please visit the West Nile virus surveillance archives