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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;

Main Article

Table 5

Epidemiologic connection among clustered tuberculosis (TB) cases in Cluster Investigation Study, 1998–2000

Cluster contains Overall (%)a
Many (>6 copies of IS6110) (%)
Few (≤6 copies of IS6110) (%)
No. Cases Definite/possible Unlikely No. Cases Definite/possible Unlikely No. Cases Definite/possible Unlikely
U.S.-born only 42 26 (62) 16 (38) 33 26(79) 7(21) 9 0 9 (100)
U.S.-born and
foreign-born 67 28 (42) 39 (58) 30 19 (63) 11 (37) 37 9 (24) 28 (76)
Foreign-born only 43 14 (33) 29 (67) 27 12 (44) 15 (56) 16 2 (13) 14 (87)
Total 152 68 (45) 84 (55) 90 57 (63) 33 (37) 62 11 (18) 51 (82)

a%, epidemiologic link.

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