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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*Comments to Author , Ann C. Miller*, Robert Suruki*, Edward Corkren*, Sue Etkind*, Jeffrey Driscoll†, Michael McGarry†, and Edward Nardell*‡
Author affiliations: *Massachusetts Department of Public Health, Boston, Massachusetts, USA; †New York State Department of Health, Wadsworth Center, Albany, New York, USA; ‡Harvard Medical School, Boston, Massachusetts, USA;

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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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