Figure 3

Pathology scores across M. tuberculosis H37Rv, M. tuberculosis BTB1558 or M. bovis AF2122/97 infected cattle. Pathology scores in the thoracic (A), extra thoracic lymph nodes (LNs) (B), and lungs (C) of animals infected with M. tuberculosis H37Rv (squares); M. tuberculosis BTB1558 (triangles), or M. bovis AF2122/97 (circles). Total gross pathology score is shown in (D). Data for each time point is presented as the mean + SEM. The difference in pathology scores was statistically significant in the lungs (ρ 0.0052) and in the total pathology score (ρ 0.0105).