No original birth record of any person whose birth occurred in this state and whose adoption was decreed before January 1, 1964, no birth record in the adopted name of any person whose birth occurred in this state and whose adoption was decreed before January 1, 1964, and no papers or documents that pertain to either such type of birth record or to the adoption of any such person shall be sealed on or after March 19, 1985. The department of health shall maintain in an adoption file all such records, papers, and documents that are in the possession of the department and were sealed pursuant to division (C) or (D) of section 3705.12 of the Revised Code as it existed before March 19, 1985, or that were mistakenly or otherwise sealed. The contents of the adoption file are not a public record and shall be made available only in accordance with section 3705.126 of the Revised Code.