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J Med Microbiol 55 (2006), 301-308; DOI: 10.1099/jmm.0.46262-0
© 2006 Society for General Microbiology
ISSN 0022-2615

Genotyping of Chlamydia trachomatis from clinical specimens in Taiwan

Min-Chih Hsu1, Pei-Yi Tsai1, Kow-Tong Chen2, Lan-Hui Li3, Chien-Chou Chiang3, Jih-Jin Tsai4, Liang-Yin Ke4, Hour-Young Chen1 and Shu-Ying Li1

1 Laboratory for Bacteriology and Mycology, Center for Laboratory Research and Diagnostics, Center for Disease Control, Taipei, Taiwan

2 Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan

3 Taipei City Hospital, Branch for Disease Control & Prevention, Taipei, Taiwan

4 Chung-Ho Memorial Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan

Correspondence
Shu-Ying Li
syl{at}cdc.gov.tw

Received 26 July 2005
Accepted 15 November 2005

This study was conducted to determine the prevalence and distribution of Chlamydia trachomatis genotypes in Taiwan. Urine and endocervical-swab samples were collected from two hospitals located in northern and southern Taiwan. The genotypes of a total of 145 samples positive for C. trachomatis were analysed by sequencing the omp1 gene and this was successful in 102 samples. Nine different C. trachomatis genotypes were identified. Genotype E was the most prevalent (22 %), followed by D and Da (19 %), F (16 %), J (15 %), K (11 %), G (11 %), H (6 %) and Ba (2 %). There was a geographical difference in the prevalence of genotype H (P<0·018) between northern and southern Taiwan. Sequence mutation analysis by BLAST searching against GenBank reference sequences identified 12 genetic variants from a total of 102 omp1 gene sequences.

The GenBank/EMBL/DDBJ accession numbers for the partial omp1 sequences from C. trachomatis strains determined in this work are DQ155295–DQ155300 and DQ287919–DQ287921.




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