Figure 3. Ears with the highest lesions scores in tympanic bullae also had high lesion scores in corresponding Eustachian tubes.

Lesion scores for Eustachian tubes are plotted against with lesion scores for the corresponding tympanic bullae from calves experimentally infected with M. bovis by the oral route (N = 8; separate date points are shown for the left and right sides of each calf). For visual purposes, tissues with identical scores have been shown with values slightly offset.