ACOG is the premier professional organization for obstetricians-gynecologists. Through a cooperative agreement with the CDC, ACOG has partnered with 5 national groups to form a Maternal Immunization Task Force. The Maternal Immunization Task Force provides an avenue to share immunization resources among various prenatal care provider organizations and practitioners, address the immunization resource needs of prenatal care providers, and create a shared vision of maternal immunization among these national groups.