Cameroon has experienced disruptions in health services since 2016 due to insecurity along some of its borders and internal socio-political upheaval in the northwest and southwest regions. Despite a decrease in vaccination rates in urban areas because of the COVID-19 pandemic, the country’s overall immunization rate for the first dose of diphtheria, tetanus toxoids, and pertussis, (DTP1) remained steady at 75 percent between 2019 and 2022, as did its rate for DTP3 (third dose) coverage, which stood at 67 percent in 2019 and 68 percent in 2022, according to World Health Organization (WHO) and United Nations Children’s Fund (UNICEF) Estimates of National Immunization Coverage (WUENIC). This case study explains how Cameroon’s immunization activities were able to maintain vaccination rates despite the pandemic by using microplanning and increased communication within missed communities.