Mosquito-borne Diseases

Mosquitoes are responsible for causing more human suffering than any other animal on the planet. Diseases vectored by mosquitoes fall into three primary categories: (1) protozoan diseases, such as Malaria; (2) filarial diseases, such as heartworm; and (3) viral diseases, such as yellow fever, dengue fever and encephalitis. The number of people worldwide affected by these diseases is staggering. Each year there are 300 - 500 million cases of malaria reported, resulting in 1.5 to 2.7 million deaths. In contrast, HIV infection, a non mosquito-borne illness, afflicts almost 6 million people each year. Within the United States, encephalitides (western equine encephalitis, St. Louis encephalitis, eastern equine encephalitis, and West Nile virus) are the most commonly reported mosquito-borne diseases in humans. Of primary concern in Teton County is the West Nile Virus and Western Equine Encephalitis.




Since the operation of the Teton County Mosquito Abatement District no WNV has been found in mosquitos nor have any human cases been reported within the district area.