Treponema pallidum

The species Treponema pallidum includes 4 subspecies. According to the bioinformatic analysis, the syphilis pathogen T. pallidum subsp. pallidum was probably separated from the causative agents of yaws, bejel, and pinta more than 800 years ago. Its …

Objective. To investigate prevalence of the A2058G mutation in the Russian population of T. pallidum and its association with molecular subtypes. Materials and Methods. We analyzed DNA isolated from 325 samples of clinical material obtained from patients of dermatovenereological treatment and prophylactic institutions in 6 federal districts of the Russia in the period from 2014 to 2021. Patients were diagnosed with primary syphilis of the genital organs, primary syphilis of other sites, or secondary syphilis of the skin and mucous membranes.

Objective. To investigate genetic determinants of resistance to antimicrobial agents recommended for the treatment of syphilis and assess their prevalence in molecular subtypes of Treponema pallidum subsp. pallidum in the Russian Federation over the period of 2014-2017. Materials and Methods. A total of 161 clinical isolates of T. pallidum obtained from Tyva, Stavropol, Irkutsk, Kaluga, Novosibirsk and Omsk regions were included in this study. Genetic material of T. pallidum was detected by PCR with primers to polA gene.