Figure 3
From: Treating cofactors can reverse the expansion of a primary disease epidemic
HIV prevalence in a cofactor free population. 35 year population time series for two-patch model with total transmission rate (β T , thick lines) and two-patch model with direct transmission rate (β D , thin lines). Total populations indicated in black, infected subpopulations in gray. Starting conditions: 1000 individuals, 100 infected by the primary disease, 0 carrying the cofactor.