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. 2014 Dec 30;9(12):e115875. doi: 10.1371/journal.pone.0115875

Figure 1. Schematic diagram of a Stratified Worm Burden (SWB) system.

Figure 1

The SWB model includes population strata Inline graphic, sources Inline graphic, population turnover/loss rates Inline graphic, the force of infection Inline graphic ( = worm accretion rate), and worm clearing rates Inline graphic (Inline graphic is worm mortality).