Most recent weekly forecast

Click here for the West Nile Weekly, June 26th, 2017

We expect that there should be around one county reporting human cases for the week beginning June 26th, 2017. This is early in the season and overall risk is still low, but human cases have begun. Mosquito control and public education are advised.

Most recent seasonal forecast

Click here for the West Nile Seasonal June 23rd, 2017

As of late June, 2017 is estimated to be an average to above-average year for WNV. At this time, we expect about 83 cases in 2017, and the accuracy of this estimate will improve as mosquito data are received and analyzed. This forecast is based on higher-than-normal temperatures and humidity in early 2017, slightly earlier-than-normal detection of human cases and infected mosquitoes, and weather forecasts of a warmer-than-average summer.


NASASouth Dakota State UniversitySD Department of Health

South Dakota State University has partnered with the South Dakota Department of Health to implement a program of West Nile virus (WNV) research that will support public health decision makers at the state level and mosquito control programs at the local level. Major activities include mosquito surveillance and testing for WNV, monitoring environmental risk factors using data from earth observing satellites, and using this information to predict the risk of WNV to humans across the state. This work is supported in part by a grant from the NASA Applied Sciences Public Health and Air Quality Program (NNX15AF74G).