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Eur J Clin Microbiol Infect Dis. 2010 May;29(5):609-11. doi: 10.1007/s10096-010-0887-1. Epub 2010 Mar 1.

Distribution of Chlamydia trachomatis ompA genovars and the new variant of C. trachomatis in the Göteborg area, Sweden.

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Department of Biomedicine, Göteborg University, The Sahlgrenska Academy, Box 435, 405 30 Göteborg, Sweden.


The aims of this study were to assess the proportion of the new variant of Chlamydia trachomatis (nvCT) and the distribution of ompA genovars among C. trachomatis-positive patients in the Göteborg area, Sweden. Consecutive urine samples positive for C. trachomatis using BD ProbeTec ET (177 patients, 88 men and 89 women) were collected. An nvCT-specific real-time polymerase chain reaction (PCR) assay was used to investigate the nvCT prevalence. To identify the genovars, a 990-bp ompA DNA segment from 105 specimens was sequenced. Seventeen percent (30/177) of all specimens contained nvCT. Nine different genovars were identified. About 50% were of genovar E, followed by F 16%, G 11%, K 8%, and D 5%, representing about 90% of the specimens in Göteborg. The occurrence of nvCT and the dominance of genovar E in Göteborg is similar to those in other areas of Sweden. To cover about 90% of the C. trachomatis infections in Sweden, the serovars D, E, F, G, and K should be included in future vaccines based on the major outer membrane protein.

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