FIGURE 4: Proportion of bats surviving the initial epidemic (red bars) and 2018 experiment (blue bars) in each site. Observed survival corresponded to the degree of tissue invasion and weight loss at each site. Despite the lowest pathogen growth rate, bats in Persisting 1 (Cold + Dry) had a high degree of infection severity, ultimately resulting in the lowest observed survival. In all three sites, we observed higher survival in this experiment than during the initial epidemic within the same sites, suggesting that WNS has selected for host traits suitable to surviving the disease.