Far East Scarlet-Like Fever Caused by a Few Related Genotypes of<i>Yersinia pseudotuberculosis</i>, Russia

Abstract

We used multivirulence locus sequence typing to analyze 68 Yersinia pseudotuberculosis isolates from patients in Russia during 1973-2014, including 41 isolates from patients with Far East scarlet-like fever. Four genotypes were found responsible, with 1 being especially prevalent. Evolutionary analysis suggests that epidemiologic advantages could cause this genotype's dominance.