Maintenance of genotypic diversity in mice and ticks over 100 generations.Number of pathogen genotypes per (A) mouse and (B) tick in model simulations with 100 mice and varying vector-to-host ratios. Variation in vector-to-host ratios was simulated by varying the number of ticks from 100 (1∶1 ratio) to 5000 (50∶1 ratio).
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