XbaI-digested pulsed-field gel electrophoresis profiles of isolates from fecal specimens collected from patients during an outbreak of human gastroenteritis associated with Escherichia albertii, Japan. Extra bands observed in 2 E. albertii isolates are indicated by arrowheads (only 1 or 2 band differences). The 2 E. coli O183:H18 and 6 E. albertii isolates indicated by numbers in boxes were subjected to multilocus sequence analysis (Technical Appendix). stx2d, Shiga toxin 2d gene; astA, enteroaggregative E. coli heat-stable toxin gene; eae, intimin gene. Lane M, Salmonella enterica serovar Braenderup strain H9812 (used as a DNA size standard); lanes P1, Party 1; lanes P2, Party 2; lanes KS, kitchen staff.