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Volume 18, Number 11—November 2012

Research

HIV Infection and Geographically Bound Transmission of Drug-Resistant Tuberculosis, Argentina

Viviana RitaccoComments to Author , Beatriz López, Marta Ambroggi, Domingo Palmero, Bernardo Salvadores, Elida Gravina, Eduardo Mazzeo, Susana Imaz, Lucía Barrera, and National TB Laboratory Network
Author affiliations: Instituto Nacional de Enfermedades Infecciosas ANLIS “Dr. Carlos G. Malbrán,” Buenos Aires, Argentina (V. Ritacco, B. López, E. Mazzeo, L. Barrera); Hospital “Dr. F.J. Muñiz,” Buenos Aires (M. Ambroggi, D. Palmero); Programa Provincial de Tuberculosis, Santa Fe, Argentina (B. Salvadores); Hospital Zonal General Agudos “Dr. Diego Paroissien,” La Matanza, Argentina (E. Gravina); and Instituto Nacional de Enfermedades Respiratorias “Dr. Emilio Coni” ANLIS “Dr Carlos G Malbran,” Santa Fe (S. Imaz)

Main Article

Table 1

Patients with newly diagnosed multidrug-resistant TB, by year and genotype cluster, Argentina, 2003–2009

Genotype No. patients
Total no. (%) patients
2003 2004 2005 2006 2007 2008 2009
Cluster M 46 40 33 29 31 28 21 228 (29.0)
Cluster Ra 13 6 19 12 15 14 10 89 (11.3)
Cluster Rb 7 10 2 1 5 6 7 38 (4.8)
Cluster Pr 4 5 4 4 1 3 5 26 (3.3)
Cluster At 3 4 1 1 1 4 7 21 (2.7)
Cluster Ob 2 1 5 5 0 1 4 18 (2.3)
Cluster Os 1 4 3 5 0 2 3 18 (2.3)
Minor cluster* 25 24 19 18 10 24 31 151 (19.2)
Unique 23 33 29 27 30 29 27 198 (25.2)
Total 124 127 115 102 93 111 115 787 (100.0)

*A total of 45 minor clusters were identified during the study period, each consisting of <15 new patients with multidrug-resistant tuberculosis.

Main Article

1Additional members of the National TB Laboratory Network who contributed data are listed at the end of this article.

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