KANSAS CITY, Mo. (AP) — Missouri prison officials have authorized treatment of only 15 of the 4,590 Missouri prison inmates who have been diagnosed with chronic hepatitis C, according to a motion filed by the American Civil Liberties Union this past week.

The ACLU is seeking an emergency court order to force the Missouri Department of Corrections and its medical provider, Corizon LLC, to begin testing and treating inmates with the viral infection, KCUR reported.

The motion filed Monday is the latest move in a class action lawsuit filed by the ACLU contending that state prison officials and Cor...