Surveillance
The Southern Nevada Health District routinely surveys and treats known breeding sources for mosquitoes.
Traps are set to capture mosquitoes for identification and testing for West Nile virus, Western equine encephalitis and St. Louis encephalitis.
In 2007, SNHD responded to 1,624 mosquito control hotline complaints that required a field response. Of these complaints, 1,547 were made on stagnant swimming pools at private residences.
The map below offers a visual of these green pool complaints. On average an inspector visits a green pool complaint location three times before the situation is resolved.
Download the 2007 Zoonotic Infectious Diseases: Surveillance and Control Report PDF (1.4 MB/32 pages) and the 2006 West Nile Virus Surveillance and Mosquito Control Annual Report PDF (2 MB/27 pages) for more information.
There are 17 species of mosquitoes that call Southern Nevada home; however, only a few species are known to take human and equine blood meals and carry disease:
- Culex quinquefasciatus (Southern house mosquito)
- Culex tarsalis (Western encephalitis mosquito)
- Culex erythrothorax (Tule mosquito)
- Ochlerotatus dorsalis (Floodwater mosquito)
- Aedes vexans (Floodwater mosquito)
- Anopheles freeborni (Western malaria mosquito)
- Culiseta inornata (Cool weather mosquito)
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