Joan Adam, Secretary of Health

West Nile Virus Prevention and Control

West Nile Virus infographic. Repel: Use insect repellant when outside. Cover: Wear long-sleeved shirts and long-legged pants. Limit: Stay indoors during the dusk-to-dawn period of the day.

If there’s a way to prevent a viral infection that causes side effects that are at best uncomfortable and at worst life-threatening, would you do your part? West Nile Virus (WNV) is a very active illness in the state of South Dakota.

2022 WNV Grants

Hello South Dakota Community and Tribal Leaders:

With mosquito season just around the corner, the Department of Health is pleased to announce the availability of West Nile virus (WNV) prevention grants once again. $500,000 is available in 2022 to assist cities, counties, and tribes with their mosquito control efforts. Grant awards will range from approximately $500 to $20,000 depending upon the size of the population served and their historical number of human WNV cases. Since the program’s inception, the state has funded millions of dollars in support of local control programs to combat West Nile Virus in South Dakota.

As you know, human West Nile Virus continues to present a very significant threat to public health in South Dakota. Since WNV first emerged on South Dakota in 2001, there has been 2,671 human cases and 47 deaths due to mosquito borne WNV.

Applications are due by June 1st and funding awards will be available starting July 1st. Awards will be made on a reimbursement basis only for mosquito control expenditures between April 1, 2022 and October 31, 2022. All mosquito control equipment and supply purchases must be documented with appropriate receipts or invoices. Please note all eligible expenditures must be completed by October 31, 2022 and all requests for reimbursement must be completed by November 30, 2022. Total reimbursements will not exceed the amount of your total award. You will be notified of your award amount when the agreements are sent out for signature. Total award amounts will still be based upon your jurisdiction’s history of human West Nile virus cases and latest population data.

Thanks for all your efforts to control mosquitoes and prevent West Nile virus. If you have any questions about this funding opportunity, please don’t hesitate to contact us at or by phone at 605-773-8107.

Kaitlin Thomas, SD-DOH
Office Public Health Preparedness and Response

Access Resources

Get educated on WNV facts and how to prevent the illness.

Know the Facts

West Nile Virus is an infection most commonly spread through mosquito bites. While it is prevalent in many states with large mosquito populations, the rate of incidents is highest in South Dakota. And WNV can lead to many other symptoms, including fevers and even serious—potentially fatal—illness.

Know Your Risk


Try these simple tips to fend off the virus during peak mosquito seasons

Prevent the Infection

While there’s no direct cure or antidote to WNV, prevention is imperative. Take steps to protect yourself from infection, and you can save yourself a lot of unfortunate side effects that result from WNV.


Anita Bharadwaja, Vectorborne Epidemiologist or 605-367-7103

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