Table 2.

Occurrence of microscopic changes associated with M. tuberculosis infection.

Group	Vaccine and Route	Animal ID	Pulmonary			Extra-Pulmonary Tissues			Lymph Nodes
			Lung Lesion Type (1–6)	Bronchus Associated Lymphoid Tissue Involvement	Multi-Nucleated Giant Cells	Spleen	Liver	Kidney	Lung Associated	Peripheral
				(n of 7 Lung Lobes)		Present (+) or Absent (-)
Group A	BCG Aerosol	U12	1, 2, 4, 5	0	5	-	-	-	+	-
		U26	1, 2, 4, 5, 6	0	6	+	+	-	+	-
		U41	1, 2, 4, 5, 6	0	7	+	+	+	+	-
		U46	1, 4, 5, 6	1	7	-	-	-	+	-
		U58	1, 2, 4, 5	3	7	-	-	-	+	-
		U66	2, 3, 4, 5, 6	0	6	-	+	+	+	-
Group B	BCG ID	U18	1, 2, 4, 5, 6	1	5	-	+	+	+	+
		U28	1, 2, 3, 4, 5, 6	3	7	+	+	+	+	-
		U31	1, 2, 4, 5, 6	1	6	+	+	+	+	+
		U56	1, 4, 5, 6	0	3	+	+	-	+	+
		U72	1, 4, 5, 6	0	4	+	+	-	+	-
Group C	No vaccine	U15	1, 4, 5, 6	0	5	+	+	+	+	+
		U22	1, 2, 4, 5, 6	0	6	+	+	+	+	+
		U36	1, 2, 4, 5, 6	1	6	+	+	+	+	-
		U49	1, 2, 3, 4, 5, 6	0	7	+	+	+	+	-
		U57	4, 5, 6	0	4	-	-	+	+	+
		U60	1, 2, 4, 5, 6	0	5	+	+	+	+	+
		U73	1, 4, 5, 6	0	7	+	+	+	+	+