The goal of resource mobilization is to support the start-up, pilot-testing and maintenance of TB screening. In the initial phases, national TB programmes may not have allocated funding for new screening activities, and funds might have to be sought from alternative domestic and external sources (14). Usually, once screening activities become routine and are shown to be effective, funding becomes available from mainstream domestic and external TB programme budgets. In the medium to long term, as the TB epidemic is better controlled, TB prevalence decreases and the NNS increases, and resource mobilization may have to shift to maintaining funding levels to find fewer and fewer people with TB. Once the TB epidemic reaches near-elimination, national TB programme budgets may be expected to be reduced while still maintain high-quality screening among at-risk groups.