WASHINGTON (AP) — A Pentagon spokesman says the U.S. military is scaling back the size and number of Ebola treatment facilities it is building in Liberia.

Army Col. Steve Warren said Wednesday that a total of 10 treatment facilities will be built; the Pentagon previously had planned to build as many as 17. Additionally, seven of the 10 will have 50 beds each rather than the 100 beds previously planned.

The first of the 10 treatment facilities has been completed and two more are expected to be finished this week. They are built by U.S. military personnel and are to be operated by local or international health workers.

Warren did not say why the facilities are being scaled back, but others have noted that the Ebola infection rate in Liberia has subsided.

The U.S. also has scaled back the size of its troop contingent, from about 4,000 originally planned to about 3,000.