Fig. 3.

In a model of excretion including n = 134 piglets over a period of 28 days with infections between the 1st and the 23rd day of life (with a calculated first excretion day on the last day of sampling) where all piglets excreted at least for 1 day (cumulative excretion rate = 100%; mean excretion days: 4.4, minimum = 1 day, maximum = 13 days; adapted from Joachim et al., 2014), single sampling of individual piglets on different days returns 5–31% positive samples; repeated sampling yields 22–49% positive samples