Table 1. Epidemiological data of MB leprosy patient household contacts.

Contact Identification	Age (years) at first examination	Neonatal BCG vaccination	BCG vaccination at T0	IgM antibodies against PGL-I	Clinical form of the index case / LBI	Time interval between first and second evaluation (months)
1	52	no	yes	negative	BL / 4.8	22 months
2	36	no	yes	negative	BL / 3.6	6 months
3	41	no	yes	positive	BL / 3.6	6 months
4	52	no	yes	negative	LL / 5.9	6 months
5	29	no	yes	negative	LL / 5.9	12 months
6	41	yes	yes	negative	LL / 5.9	26 months
7	25	yes	yes	negative	LL / 3.8	26 months
8	46	yes	yes	positive	LL / 4.8	12 months
9	63	yes	yes	negative	BL / 3.8	12 months
10	19	yes	yes	positive	LL / 5.9	20 months
11	48	yes	yes	positive	LL / 5.9	10 months
12	26	yes	yes	negative	LL / 4.8	17 months
13	38	yes	yes	positive	BL / 2.0	6 months
14	43	no	no	positive	BL / 4.8	21 months
15	19	yes	no	negative	BL / 3.6	6 months
16	20	yes	no	negative	LL / 5.9	6 months

Abbreviations: LL, Lepromatous Lepromatous; BL, Borderline Lepromatous; LBI, logarithmic bacillary index of skin lesion;

T0 indicates the beginning of index case treatment and prior to BCG vaccination; and T1 indicates the end of index case treatment and after BCG vaccination.