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Volume 8, Number 11—November 2002
THEME ISSUE
Tuberculosis Genotyping

Tuberculosis Genotyping Network, United States

Statewide Molecular Epidemiology of Mycobacterium tuberculosis Transmission in a Moderate- to Low-Incidence State: Are Contact Investigations Enough?

Wendy A. Cronin*Comments to Author , Jonathan E. Golub*, Monica J. Lathan†, Leonard N. Mukasa*, Nancy Hooper*, Jafar H. Razeq*, Nancy G. Baruch*, Donna Mulcahy‡, William H. Benjamin§, Laurence S. Magder¶, G. Thomas Strickland¶, and William R. Bishai#
Author affiliations: *Maryland Department of Health and Mental Hygiene, Baltimore, Maryland, USA; †American Public Health Association, Washington, D.C., USA; ‡Alabama Department of Public Health, Montgomery, Alabama, USA; §University of Alabama at Birmingham, Birmingham, Alabama, USA; ¶University of Maryland—Baltimore, Maryland, USA; #The Johns Hopkins University, Baltimore, Maryland, USA;

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Table 3

Identified transmission settings for 114 patients with recently acquired tuberculosis (TB)

Settings Total patients with
known settings (%) Setting identified by routine contact investigation (%) Setting identified by DNA cluster investigation (%)
Traditional
 Household
 Close relative
 Close friend
Nontraditional
 Hospital (23,28)
 Other workplace (24)
 Social club (25)
 Homeless shelter
 Bar
 Prison/jail (26)
 Store (27)
 Church
 Nursing home
 School
 Ship
 Mortuary (29)
Total 28 (24.6)
13 (11.4)
17 (14.9)
10 (8.8)
6 (5.3)
11 (9.6)
5 (4.4)
10 (8.8)
5 (4.4)
2 (1.8)
2 (1.8)
1 (0.9)
1 (0.9)
1 (0.9)
114 (100.0) 25 (34.7)
13 (18.1)
11 (22.2)
5 (6.9)
6 (8.3)
7 (9.7)
0
1 (1.4)
3 (4.2)
0
0
0
0
1 (1.8)
0 (1.4)
72 (100.0) 3 (7.1)
0
6 (14.3)
5 (11.9)
0
4 (9.5)
5 (11.9)
9 (21.4)
2 (4.8)
2 (4.8)
2 (4.8)
2 4.8)
1 (2.4)
0 (2.4)
42 (100.0)

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