Table 2. Distribution of Mycobacterium tuberculosis isolates according to lineage and continent of patient origin on the basis of CEL group, the Midlands, UK*.
| Continent and region | No. (%) isolates in each M. tuberculosis lineage |
Total no. (%) isolates | |||||
|---|---|---|---|---|---|---|---|
| East African–Indian | East Asian | Euro-American | Indo-Oceanic | West African-1 | West African-2 | ||
| Africa | |||||||
| Eastern | 56 (4) | 9 (4) | 62 (3) | 39 (7) | 0 | 0 | 166 (4) |
| Central | 0 | 0 | 4 (0) | 1 (0) | 0 | 0 | 5 (0) |
| Northern | 2 (0) | 0 | 3 (0) | 1 (0) | 0 | 0 | 6 (0) |
| Southern | 2 (0) | 1 (0) | 29 (2) | 3 (1) | 0 | 0 | 35 (1) |
| Western | 5 (0) | 3 (1) | 21 (1) | 5 (1) | 4 (24) | 1 (14) | 39 (1) |
| Unknown | 0 | 1 (0) | 6 (0) | 1 (0) | 0 | 0 | 8 (0) |
| Region total |
65 (5) |
14 (6) |
125 (7) |
50 (9) |
4 (24) |
1 (14) |
259 (6) |
| Americas | |||||||
| Caribbean region | 2 (0) | 0 | 5 (0) | 0 | 0 | 0 | 7 (0) |
| North America | 2 (0) | 0 | 4 (0) | 1 | 0 | 0 | 7 (0) |
| South America | 2 (0) | 0 | 2 (0) | 0 | 0 | 0 | 4 (0) |
| Region total |
6 (0) |
0 |
11 (1) |
1 (0) |
0 |
0 |
18 (0) |
| Asia | |||||||
| Eastern | 4 (0) | 25 (11) | 10 (1) | 5 (1) | 0 | 0 | 44 (1) |
| Southeastern | 1 (0) | 2 (1) | 3 (0) | 5 (1) | 0 | 0 | 11 (0) |
| Southern | 1,117 (79) | 100 (46) | 614 (32) | 403 (72) | 4 (24) | 2 (29) | 2,240 (55) |
| Western | 5 (0) | 0 | 13 (1) | 1 (0) | 0 | 0 | 19 (0) |
| Unknown | 23 (2) | 1 (0) | 23 (1) | 5 (1) | 0 | 0 | 52 (1) |
| Region total |
1,150 (81) |
128 (59) |
663 (35) |
419 (75) |
4 (24) |
2 (29) |
2,366 (58) |
| Europe | |||||||
| Eastern | 1 (0) | 1 (0) | 17 (1) | 2 (0) | 0 | 0 | 21 (1) |
| Northern | 186 (13) | 69 (32) | 994 (52) | 74 (13) | 7 (41) | 4 (57) | 1,334 (33) |
| Southern | 9 (1) | 6 (3) | 40 (2) | 6 (1) | 1 (6) | 0 | 62 (2) |
| Western | 0 | 0 | 14 (1) | 0 | 1 (6) | 0 | 15 (0) |
| Unknown | 1 (0) | 0 | 7 (0) | 2 (0) | 0 | 0 | 10 (0) |
| Region total |
197 (14) |
76 (35) |
1,072 (57) |
84 (15) |
9 (53) |
4 (57) |
1,442 (35) |
| Unclassified |
7 (0) |
0 |
23 (1) |
2 (0) |
0 |
0 |
32 (1) |
| Total | 1,425 (100) | 218 (100) | 1,894 (100) | 556 (100) | 17 (100) | 7 (100) | 4,117 (100) |
*CEL, cultural, ethnic, and linguistic. Unknown indicates that the continent was identified but without a specific region. The United Kingdom (Great Britain and Northern Ireland) is located in northern Europe and India, Pakistan, and Bangladesh are located in southern Asia. A total of 90 (2%) of 4,207 strains were not assigned to 1 of the 6 major lineages.