Mo. Rev. Stat. § 334.157: Board to promulgate certain rules relating to vaccines and immunizations.

The state board of registration for the healing arts, in consultation with the department of health and senior services, shall promulgate rules and regulations requiring physicians to:

(1) Administer hepatitis B vaccine and immunoglobulin to neonates in keeping with standards of current medical practice in any instance in which the blood test for hepatitis B performed in accordance with section 210.030 indicates the neonate has been exposed or is at risk of exposure to hepatitis B; and

(2) Recommend to the parents or legal guardians of any neonate who is not found to have been exposed or at risk of exposure to hepatitis B that the neonate receive hepatitis B vaccine in accordance with standards of current medical practice, upon receipt of informed written consent of the parents or legal guardians.