Figure 3From: Mycoplasma bovis infections in Swiss dairy cattle: a clinical investigation Incidence risk of pneumonia in calves and cows (according to the definition given in the material and methods section) in control herds 12-months prior to the first visit. Data on the exact number of calves of control herd 10 was not available; therefore incidence risk of pneumonia in calves could not be estimated for this herd.Back to article page