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Volume 26, Number 3—March 2020

Mycobacterium tuberculosis Beijing Lineage and Risk for Tuberculosis in Child Household Contacts, Peru

Chuan-Chin Huang1, Alexander L. Chu1, Mercedes C. Becerra, Jerome T. Galea, Roger Calderón, Carmen Contreras, Rosa Yataco, Zibiao Zhang, Leonid Lecca, and Megan B. MurrayComments to Author 
Author affiliations: Brigham and Women’s Hospital, Boston, Massachusetts, USA (C.-C. Huang, M.C. Becerra, Z. Zhang, M.B. Murray); Harvard Medical School, Boston (C.-C. Huang, M.C. Becerra, M.B. Murray); Harvard University Division of Continuing Education, Cambridge, Massachusetts, USA (A.L. Chu); University of South Florida, Tampa, Florida, USA (J.T. Galea); Socios En Salud Sucursal, Lima, Peru (R. Calderon, C. Contreras, R. Yataco, L. Lecca)

Main Article

Table 1

Baseline characteristics of Mycobacterium tuberculosis culture-positive index patients, Lima, Peru, September 2009–August 2012

Variable No. (%), N = 2,223*
Age, y
16–30 1,363 (61)
31–45 465 (21)
395 (18)
M 1,289 (58)
934 (42)
Concurrent condition
HIV seropositive 59 (3)
Self-reported diabetes 111 (6)
Current smoker
60 (3)
M. tuberculosis lineage
L2 (Beijing) 255 (12)
L4.1 951 (43)
L4.3 775 (35)
242 (11)
Sputum smear status†
Negative 548 (25)
+ 639 (29)
++ 431 (19)
596 (27)
Cavitary disease
655 (30)
Drug resistance profile
Pansusceptible 1,442 (67)
Resistant 726 (33)

*Numbers might not add to total because of missing data.
†+, 1–99 acid-fast bacilli (AFB) in 100 observed fields; ++, 1–10 AFB per field in 50 observed fields; +++, >10 AFB per field in 20 observed fields.

Main Article

1These authors contributed equally to this article.

Page created: February 20, 2020
Page updated: February 20, 2020
Page reviewed: February 20, 2020
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