Partnership for Reviving Routine Immunization in Northern Nigeria (PRRINN), a five-year project funded by DFID, is focused on improving routine immunization coverage in four northern Nigerian states: Jigawa, Katsina, Yobe and Zamfara. Led by a consortium of three prime partners -- HPI, Save the Children UK and GRID -- PRRINN’s goal is to improve immunization coverage in a sustainable manner and strengthen both routine immunization systems and by extension, the primary health care system. CCP provides technical expertise in communication, operational research and community mobilization. CCP designs appropriate communication strategies, provides training and support, and implements methodologies to increase demand for, and improve the supply of, routine immunization services.