Table 3.

Total score for the number of AFB in granulomas at each stage and time point in the guinea pig lungs.

Granuloma stage	5 dpi				10 dpi				3 wpi				4 wpi				8 wpi				24–27 wpi
	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
Stage I	6	0	0	0	3	0	0	0	2	0	0	0	5	0	0	0	21	2	0	0	27	11	5	0
Stage II	0	0	0	0	0	0	0	0	0	2	1	0	2	8	0	0	17	9	0	0	24	23	3	10
Stage III	0	0	0	0	0	0	0	0	0	0	0	2	0	2	4	7	0	1	1	0	2	10	3	1
Stage IV	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	3	3	1	2	3	0
Total count	6	0	0	0	3	0	0	0	2	2	1	2	7	10	4	7	38	15	4	3	54	46	14	11

The total number of AFBs present in each granuloma were counted and recorded using a scoring system: 0 = no AFBs, 1 = 1–10 AFBs, 2 = 11–50 AFBs, and 3 ≥ 50 AFBs. AFB, acid fast bacilli; dpi, days post infection; wpi, weeks post infection.