Inputs and outputs of the most efficient surveillance protocols.

Test: Test type used. Samp: Sampling methodology. PP: Population proportion sampled. Ages: ages sampled during primary sampling. Radius: microfocus radius. Int: microfocus intensity. TBS: Number tested in trigger-based sampling (all ages). TH: Threshold (number of positives required during trigger-based sampling for program manager to believe they have identified a microfocus). Pos/Test: Proportion of persons tested who are positive. Pos/PopPos: Proportion of all positive persons in the population who are identified in testing. Test/Pop: Proportion of total population tested. μf PVP: Proportion of all suspected microfoci that are true microfoci (correctly identified as microfoci). μf Sens: Proportion of all microfoci found through the sampling protocol.