The Secretary of Human Services may provide for treatment and care of tuberculosis and chronic respiratory disease patients at facilities designated by him or her. (Amended 1965, No. 5, § 2; 1966, No. 22 (Sp. Sess.), § 2; 1969, No. 101, § 7, eff. April 19, 1969; 1973, No. 89, § 2.)