State Health Department officials say a 10-year-old Keyes boy has died from meningitis.
Also, a female resident of the tiny Cimarron County town is in an Elkhart, Kan., hospital, being treated for the bacteria that can cause the disease.
Laurie Smithee, the chief of acute diseases for the state Health Department, says the boy died about a week and a half ago and that the woman was taken to the hospital on Oct. 30.
Smithee did not reveal their identities.
Keyes, with a population of about 360, is located in Oklahoma's westernmost county.
Smithee says nurses from the health department in adjacent Texas County have been trying to determine whether the boy and woman had had contact and who else might have been in contact with either of them.