 North Dakota had its first confirmed case of West Nile virus this season. The state health department says a resident in Morton County contracted the illness and was hospitalized. You should take precautions to avoid mosquito bites, such as using repellents and wearing long sleeves and pants, especially at dawn and dusk when mosquitoes are their most active. Most people who contract West Nile virus don't experience any symptoms, but some people, the illness can be very serious or sometimes even fatal.