Public health; prohibiting certain vaccination of an infant without prior written informed consent. Effective date.

SB 879 requires healthcare providers to obtain written informed consent from a parent or legal guardian before administering certain vaccines (like Hepatitis B) to infants, explaining associated risks. It makes these vaccinations voluntary and opt-in only, prohibiting providers from implying consent is required. The bill directly affects infants receiving these specific vaccines and their parents or guardians. It takes effect November 1, 2025, and is codified under Oklahoma Statutes Section 1-511.1.