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Figure 3 :Gross morphology of the mice lung infected with ethambutol resistant strains of M. tuberculosis. Panel (A) shows presence of coalescent tubercles with more caseation 40 days post-infection showing progressive disease in mice infected with ethambutol monoresistant strain B-3773. Panel (B) shows tubercles (white nodules), sign of progressive disease, 40 days post-infection in mice infected with ethambutol, isoniazid and rifampicin resistant (MDR) strain B-3825

Figure 3 :Gross morphology of the mice lung infected with ethambutol resistant strains of M. tuberculosis. Panel (A) shows presence of coalescent tubercles with more caseation 40 days post-infection showing progressive disease in mice infected with ethambutol monoresistant strain B-3773. Panel (B) shows tubercles (white nodules), sign of progressive disease, 40 days post-infection in mice infected with ethambutol, isoniazid and rifampicin resistant (MDR) strain B-3825