Fig. 1From: The predicted impact of tuberculosis preventive therapy: the importance of disease progression assumptionsSchematic of model structures. S = susceptible; LF = “fast” latent state; LS = “slow” latent state; I = TB disease; PF = post preventive therapy (from “fast” latent state); PS = post preventive therapy (from “slow” latent state). Red lines and boxes show the preventive therapy components of the model. Definitions of model parameters are given in Table 1Back to article page