As used in this chapter: I. "Critical health problem" means any of the following: (a) Lead poisoning. (b) Reye's syndrome. (c) A disease, condition, or procedure relating to public health which is determined by the commissioner to be of particular concern or importance as a critical health problem in this state, being in need of greater research, study, and statistical analysis. II. "Commissioner" means the commissioner of the department of health and human services. III. [Repealed.] IV. "Facility" means a governmental or private agency, department, institution, clinic, laboratory, hospital, or a health maintenance organization, association, or other similar unit designated by the commissioner.