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Indian J Dermatol Venereol Leprol. 2016 Sep-Oct;82(5):523-6. doi: 10.4103/0378-6323.181470.

Chlamydia trachomatis serovar G infection in a bisexual male with urethritis.

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Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India.


We report a case of Chlamydia trachomatis serovar G urogenital tract infection in a 33-year-old human immunodeficiency virus-1 (HIV-1) seropositive Indian bisexual male. This case highlights the emergence of a new serovar in India. The patient was tested positive for C. trachomatis by both cryptic plasmid and omp A gene polymerase chain reaction (PCR). On further characterization using polymerase chain reaction - restriction fragment length polymorphism (PCR-RFLP) and omp A gene sequencing, the strain was found to be C. trachomatis serovar G. His spouse was also found to be infected with C. trachomatis serovar G. Phylogenetic analysis was performed on the clinical isolates obtained from both partners and were found to be identical to the isolates available in GenBank. The sexual network could not be traced further. Detection of a new genotype suggests importation of a new strain into the population probably by sexual contact with a person from a geographical area where the strain is common. Identifying circulating genotypes in the community can assist in developing strategies for improved sexually transmitted disease control.

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