Notwithstanding the amendment of sections 339.38, 339.39, 339.42, and 339.43 of the Revised Code, the repeal of sections 339.20, 339.21, 339.22, 339.23, 339.231, 339.24, 339.25, 339.26, 339.27, 339.28, 339.29, 339.30, 339.31, 339.32, 339.33, 339.34, 339.35, 339.36, 339.37, 339.40, 339.41, 339.45, 339.46, and 339.99 of the Revised Code, and any other changes made by Substitute Senate Bill No. 173 of the 123rd general assembly relative to the establishment, maintenance, and operation of a county tuberculosis hospital, a county tuberculosis hospital that was operating under those sections on the effective date of that act, October 10, 2000, may continue to exist and operate on and after that date as though the provisions of those sections were neither amended nor repealed and had remained in full force and effect.