Table 2.

WHO region of origin distribution for a subset of patients with a known clinical history and country of origin

WHO region	No. of persons	% of total	% InBiosTB IgG positive (n)
U.S.A./Canada	344	46.6	5.3 (18)
Southern Asia/Southeastern Asia	161	22.1	6.3 (10)
Mexico/Central America	74	10.2	9.6 (7)
Africa	62	8.5	9.7 (6)
Central Asia/Eastern Asia/Russia	36	5.0	5.6 (2)
Western Asia	32	4.4	3.1 (1)
Europe	14	1.9	7.1 (1)
Caribbean	5	0.7	40.0 (2)
Oceania	3	0.4	0 (0)
South America	2	0.3	0 (0)
Total	728	100.0	6.5 (47)