Community Outbreak ofYersinia pseudotuberculosis

Abstract
An outbreak of Y. pseudotuberculosis in Kurashiki, Japan is described. This is the 1st conclusive report for a community outbreak of this microorganism. A total of 535 pupils, 5 teachers and 1 food attendant contracted the organism. Causative organisms were detected in 19 of 30 patients. All isolated strains belonged to serotype VA. Of 653 pupil sera, 488 showed elevated agglutinin titers ranging from 1:80 to .gtoreq. 1:1,280 within a period of 3 mo.