(a) rep-PCR profiles of E. cloacae clinical isolates with primer ERIC2; (b) rep-PCR profiles of E. cloacae clinical isolates with primer REP. Lanes M, DNA molecular size markers; lanes A to G, rep-PCR profiles of seven distinct types of E. cloacae clinical isolates, respectively. Subscript numerals: 1, ERIC2 type; 2, REP PCR type.