Changes in model outputs resulting from univariate variations of phenotypic traits of resistance to paratuberculosis. A cumulative incidence, B persistence, C prevalence of infected animals, D prevalence of high shedders and affected animals at the end of simulations (25 years). “Ref” corresponding to the reference value of the phenotypic trait. See Table 1 for parameter definitions and tested values, Table 2 for output definitions. Vertical and horizontal solid lines give reference values, dotted lines give associated 5th and 95th percentiles.