Table 2.

Clinical samples containing TPA with identical genotypes based on the typing of at least two independent chromosomal loci but with different versions of the 23S rRNA gene

	23S rRNA gene
Genotype*	Wildtype	A2058G	A2059G	References
SS†	+	+‡	+	44, 45
SU2	+	+	−§	44
14d/f	+	+	−§	46, 53
14d/i	+	+	−§	56

TPA = Treponema pallidum ssp. pallidum.

^*Genotype was determined using sequencing-based typing or enhanced Centers for Disease Control and Prevention typing.⁴⁴,⁶⁸,⁶⁹

^†Besides wild-type 23S rDNA, the SS genotype can have either the A2058G mutation or the A2059G mutation.

^‡In all tested loci, the TPA in this sample is sequentially identical to the laboratory reference strain TPA SS14.

^§Not found yet.