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NC Division of Public Health
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Facts & Figures

The mosquito-borne illnesses most often found in North Carolina are West Nile virus (in humans and horses), eastern equine encephalitis (in humans and horses) and La Crosse encephalitis. No cases of dengue fever or malaria have been determined to have been acquired in North Carolina; all cases of dengue and malaria reported in North Carolina have been associated with international travel. To see a map of locations where dengue is known to occur please visit: External link To find information regarding malaria risk by country please see: External link

Reported Cases of West Nile Virus, La Crosse and Eastern Equine Encephalitis

Reported arboviruses are also included in the overall communicable disease statistics for the state. Monthly and yearly reports are available on the Communicable Disease Facts & Figures page.

For national-level statistics and maps, visit the U.S. Geological Survey disease maps website: ArboNET Disease Maps. External link

For Additional Information

  • American Association of Blood Banks (AABB): Map of Suspected West Nile Virus Cases - Donated blood is routinely screened for West Nile Virus and other infectious diseases. Although most viremic blood donors are asymptomatic and are therefore not classified as cases of West Nile Virus, the data is monitored by the AABB and West Nile Virus Biovigilance Network.
  • Healthmap: DengueMap - World locations of ongoing dengue transmission risk as defined by the Centers for Disease Control and Prevention (CDC).
  • CDC: Malaria Risk by Country