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West Nile Prevention Program

Mosquito Biting Finger

The program is designed to reduce the threat of West Nile Virus which is transmitted to humans through bites by infected mosquitoes.

There are 43 known species of mosquitoes in South Dakota and only nineteen are known vectors of West Nile Virus. It is estimated that less than 1% of mosquitoes are infected with the West Nile Virus. And less than 1% of the people bitten by infected mosquitoes will get seriously ill. The chances are very small that you will be infected with the disease, but, even one case of West Nile Virus is considered one case too many.

Ways to Reduce Exposure
To reduce exposure to mosquitoes and the risk of becoming infected with West Nile Virus, the following steps are also recommended:

  1. Stay indoors at dawn, dusk, and in the early evening.
  2. Wear light colored, long-sleeved shirts and long pants made of tightly woven materials whenever you are outdoors.
  3. Spray clothing with mosquito repellents containing picaridin, IR3535, oil of lemon eucalyptus and para-methane-diol products, or DEET since mosquitoes may bite through thin clothing.
  4. Apply mosquito repellent sparingly to exposed skin. An effective DEET repellent will contain 35% DEET (N,N-diethlmeta-toluamide). DEET in high concentrations (greater than 35%) provides no additional protection. For children, use repellents containing no more than 10% DEET.
  5. Mosquito repellents may irritate the eyes and mouth, so avoid applying repellent to the hands of children.
  6. Whenever you use mosquito spray or an insect repellent, be sure to read and follow the manufacturer’s directions for use, as printed on the product.
  7. Turn off any lights that can attract mosquitoes. Use yellow bug lights; for outdoor lighting. Yellow lights are less attractive to insects.
  8. Keep grass and weeds cut short to reduce mosquito hiding places.
  9. Screens on windows and doors should be bug tight.

Additional Information

Below are links to additional information concerning the city's West Nile Prevention Program and West Nile Virus:

Utility Bill Flyer (PDF)
West Nile Virus Presentation (PDF)
South Dakota Department of Health - West Nile Virus Prevention and Control
South Dakota Department of Health Video
Centers for Disease Control and Prevention - West Nile Virus
Mosquito Meets MODIS: South Dakota Fights West Nile Virus

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Contact Us
Jay DeLange, Director
Parks, Recreation, and Forestry
Phone: 882 - 6260
Email Jay