Author: Akachi Mbogu, Abiola Ojumu, Dr. Sebastian Ilomuanya, Temidayo Ogunrinu, Dr. Shola Dele-Olowu, and Dr. Owens WiwaEvery day at primary health centers across Nigeria, the Officer In-Charge (OIC) manages the routine immunization (RI) program, which ensures that hundreds of children under the age of one safely receive their required vaccinations...