Douglas County health officials in Omaha say a man has died of West Nile virus, marking the county’s first death from the mosquito-borne disease this year.

Health Director Dr. Adi Pour says the man was over 65 years old and had traveled to Texas before getting sick with the disease. The man had been hospitalized.

West Nile virus is transmitted to people through the bite of a mosquito that has picked up the virus from an infected bird. The virus has flu-like symptoms.

Health officials say residents should limit their time outdoors during dawn or dusk, wear long-sleeved shirts and pants if they’re outside and use insect repellent.