Volume 8, Number 11—November 2002
THEME ISSUE
Tuberculosis Genotyping
Tuberculosis Genotyping Network, United States
Genotyping Analyses of Tuberculosis Cases in U.S.- and Foreign-Born Massachusetts Residents
Sharon Sharnprapai*
, Ann C. Miller*, Robert Suruki*, Edward Corkren*, Sue Etkind*, Jeffrey Driscoll†, Michael McGarry†, and Edward Nardell*‡
, Ann C. Miller*, Robert Suruki*, Edward Corkren*, Sue Etkind*, Jeffrey Driscoll†, Michael McGarry†, and Edward Nardell*‡
Table 3
Mycobacterium tuberculosis IS6110 copy numbers in genotypes by geographic region
| Geographic region | No. of isolates in foreign-born (%) (N=684) | Containing > 6 copies of IS6110 (%) | Containing ≤6 copies of IS6110 (%) |
|---|---|---|---|
| Asia | 295 | 194 (66) | 101 (34) |
| China | 59 | 52 (88) | 7 (12) |
| India | 54 | 34 (63) | 20 (37) |
| Vietnam | 87 | 45 (52) | 42 (48) |
| Other | 95 | 63 (66) | 32 (34) |
| Caribbean | 118 | 111 (94) | 7 (6) |
| Dominican Rep | 30 | 30 (100) | 0 |
| Haiti | 83 | 76 (92) | 7 (8) |
| Other | 5 | 5 (100) | 0 |
| Africa | 116 | 97 (84) | 19 (16) |
| Europe | 59 | 55 (93) | 4 (7) |
| South America | 47 | 45 (96) | 2 (4) |
| Central America | 41 | 36 (88) | 5 (12) |
| Other a | 8 | 5 (57) | 3 (43) |
aOther, 7 patients from Canada and 1 patient from Australia.
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