Figure 4
From: Decrease of virulence for BALB/c mice produced by continuous subculturing of Nocardia brasiliensis
Histological features of BALB/c mice inoculated with N. brasiliensis HUJEG-1 T130 and re-inoculated with T0. A and B: In the first 3 weeks findings are similar to those of the animals inoculated with T0; 100×. C, and D: At five weeks an intense mononuclear infiltrate was observed (100×), with thin walled grains and abundant PMNs attached to them (E; 600×). F: At twelve weeks, some animals presented lesions with grains in microabscesses surrounded by fibrotic walls; 100×. H&E stain.