Facility-led community based approach in Mamfe health district, Cameroon: a differentiated service delivery option in complex humanitarian settings.

Background: The government of Cameroon's 2017 operational guidelines for the implementation of the "test and treat" strategy expressly incorporates and prescribes the differentiated service delivery (DSD) model with testing and treatment services being decentralized and task shifted at community level. However, express guidance on DSD approach in conflict situations, characterized by pressure on existing health systems remains a limitation. The outbreak of COVID-19 further confounded humanitarian responses for fear of spread.