Open AccessMolecular analysis of Shigella sonnei isolated from three well-documented outbreaks in school children
Author(s) -
Tsong-Ming Lee,
LinLi Chang,
Chih-Yuan Chang,
Jinn-Chyi Wang,
TzuMing Pan,
Tien-Kuei Wang,
Shui-Feng Chang
Publication year - 2000
Publication title -
journal of medical microbiology/journal of medical microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 117
eISSN - 1473-5644
pISSN - 0022-2615
DOI - 10.1099/0022-1317-49-4-355
Subject(s) - ribotyping , pulsed field gel electrophoresis , shigella sonnei , microbiology and biotechnology , biology , outbreak , shigella , molecular epidemiology , typing , restriction enzyme , virology , polymerase chain reaction , genotype , genetics , bacteria , salmonella , dna , gene
Fifty-eight isolates of Shigella sonnei from three outbreaks in school children and eight control isolates from epidemiologically unrelated sporadic clinical infections in Taiwan were compared by antibiotic susceptibility testing and molecular typing. Antibiotic susceptibility testing showed that all strains except one sporadic isolate were multi-resistant. Ribotyping after restriction endonuclease digestion with SalI, PvuII and HindII generated the same ribosomal pattern in 65 of the 66 isolates. Plasmid profile analysis and pulsed-field gel electrophoresis (PFGE) produced eight and nine distinct patterns, respectively, and were in agreement with the epidemiological relationship of the outbreak strains. Nevertheless, some of the sporadic isolates could be discriminated only by a combination of these two methods. This study showed that plasmid profiling in combination with PFGE may be superior to ribotyping in molecular epidemiological investigations of S. sonnei.