For the next several weeks, residents still run the risk of contracting the virus, said Lauri Smithee, chief of acute disease service at the state Health Department.
Smithee, an epidemiologist, said it's important to continue using mosquito repellent and wear long-sleeve shirts and pants when going outside.
Also, it's important to remove stagnant water around the home, because it can serve as a mosquito breeding ground.
In Oklahoma, the West Nile season generally runs until mid-November. The Health Department has seen a decline in the number of cases reported since early September, Smithee said.
“Even though we are seeing a decline in the number of cases, we know the virus is still circulating out there,” she said. “People shouldn't let down their guard just because fewer cases are being reported.”