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Table 2 Interventions for peripheral diagnosis of tuberculosis (TB) likely to incur large costs in each phase of implementation

From: Costing the implementation of public health interventions in resource-limited settings: a conceptual framework

Implementation phase Application Example
Design phase Interventions needing large capital outlay for design and adaptation with uncertain scale-up Implementation of mHealth-facilitated contact investigation for TB requiring procurement and tailoring of software packages
Initiation phase Simple interventions with low consumable costs that require changes in policy and workflow Low-cost lateral-flow LAM assay for TB that necessitates a new supply chain, clinical algorithms, and training of personnel
Maintenance phase Interventions that require continued infrastructure support and quality control Molecular diagnosis of TB with equipment (e.g., Xpert MTB/RIF®) that necessitates service contracts for equipment failure and external quality assurance of test results