Officials have not released any further information on the patient.
A positive mosquito sample has also been collected from Sedwick County.
The virus can be spread trough bites from infected mosquitoes but is not contagious person to person. Symptoms range from a slight headache and low-grade fever to swelling of the brain or brain tissue and, in rare cases, death.
People who have already had the virus are considered immune.
KDHE recommends several precautions to protect against West Nile virus.
-Use insect repellent containing an EPA registered active ingredient on skin and clothing.
-Be sure to use repellent and wear long sleeves and pants at dusk and dawn, when mosquitoes are most active.
-Be sure screens on windows and doors are in good condition to keep mosquitoes out of your home.
-Get rid of mosquito breeding sites by emptying standing water from flower pots, buckets and barrels. Also, change the water in pet dishes and replace water in bird baths weekly. Drill holes in tire swings so water drains out. Empty wading pools and store on their sides when not in use.