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Volume 17, Number 10—October 2011
Dispatch

Global Distribution of Shigella sonnei Clones

Ingrid Filliol-Toutain, Chien-Shun ChiouComments to Author , Caterina Mammina, Peter Gerner-Smidt, Kwai-Lin Thong, Dac Cam Phung, Mariana Pichel, Reza Ranjbar, Amy Gassama Sow, Kara Cooper, Efrain Ribot, Norma Binsztein, and Shiu-Yun Liang

Author affiliations: Institut Pasteur, Paris, France (I. Filliol-Toutain); Chung Shan Medical University, Taichung, Taiwan (C.-S. Chiou); Centers for Disease Control, Taipei, Taiwan (C.-S. Chiou, S.-Y. Liang); University of Palermo, Palermo, Italy (C. Mammina); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (P. Gerner-Smidt, K. Cooper, E. Ribot); University of Malaya, Kuala Lumpur, Malaysia (K.-L. Thong); National Institute of Hygiene and Epidemiology, Hanoi, Vietnam (D.C. Phung); Instituto Nacional de Enfermedades Infecciosas, Buenos Aires, Argentina (M. Pichel, N. Binsztein); Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran (R. Ranjbar); Institut Pasteur de Dakar, Dakar, Senegal (A. Gassama Sow)

Main Article

Figure

Clonal structure of 200 Shigella sonnei isolates. These isolates, representative of the 1,672 isolates analyzed in this study, were selected by obtaining 1 isolate for 1 multilocus variable number tandem repeat analysis (MLVA) 18 type from those identified in each of 50 countries on 5 continents (Africa, Asia, Europe, North America, and South America) and the Pacific region. The tree was constructed by using MLVA18 profiles and a minimum spanning tree algorithm. Circle size is proportional to th

Figure. Clonal structure of 200 Shigella sonnei isolates. These isolates, representative of the 1,672 isolates analyzed in this study, were selected by obtaining 1 isolate for 1 multilocus variable number tandem repeat analysis (MLVA) 18 type from those identified in each of 50 countries on 5 continents (Africa, Asia, Europe, North America, and South America) and the Pacific region. The tree was constructed by using MLVA18 profiles and a minimum spanning tree algorithm. Circle size is proportional to the number of countries detected with the MLVA18 type. Genotypes in yellow indicate isolates obtained in the early period (1943–1983). A cluster or subcluster containing >2 genotypes differing at <2 loci is indicated by the 5 other colors. Distances of 1 locus between 2 closest genotypes are indicated by thick black lines, distances of 2 loci are indicated by thin red lines, distances of 3 loci are indicated by black dashed lines, and distances >4 loci are indicated by grey dashed lines. Numbers of different loci are indicated.

Main Article

Page created: September 23, 2011
Page updated: October 03, 2011
Page reviewed: October 03, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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