305 ILCS 5/4-4.1: Immunizations.

(a) The Department of Healthcare and Family Services (formerly Illinois Department of Public Aid) shall develop and implement and that Department and the Department of Human Services shall jointly continue by rule a program to ensure that children under 5 years of age living in assistance units that receive benefits under this Code are immunized. The Illinois Department of Public Aid shall report to the Governor and the General Assembly on the progress of the program on April 1, 1994 and 1995.

(b) Nothing in this Section shall be construed to require immunization of any child in contravention of the stated objections of a parent, guardian, or relative with custody of a child that the administration of immunizing agents conflicts with his or her religious tenets and practices.