Figure 1
From: Two state model for a constant disease hazard in paratuberculosis (and other bovine diseases)
Experimental results. (A) Total fraction of observed cows in all farms studied (full line) as a function of the cow age, and the fraction of cows showing first clinical signs as a function of cow age (gray dashed line). The black dashed dotted line is the fraction of cows showing clinical signs as a function of time since first shedding (early shedding is not included in this analysis). (B) The fraction of cows getting infected from the cows that are still in the herd as a function of the cows age.