Statistics of all T. vaginalis isolates genotyped at 21 microsatellite loci.

Categorization in Eastern and Western United States regions was determined by geographical origin to the east or west of the Mississippi River. Region assignment for each isolate can be found in Table S1.*Mixed infections are excluded from these statistics.†NYC STD clinic samples are present in the table as a separate region and are also included in the Eastern United States region.‡Allelic richness is calculated for a minimum sample size of four diploid individuals.§All Indian isolates had the same genotype, most likely due to cross-contamination during in vitro culture of the isolates cultured in the same lab over many years. India is considered as a sample size of one in all subsequent analyses.