Table 2.

Genotyping results for epidemic and nonepidemic MRSA strains

MRSA groupaStrainNo. of isolatesNo. of spa gene repeatsspatypebRep-PCR type
Epidemic MRSA89-0913866----bcmf--kh---N
92-0186647----bcmf--khi--N
91-1015557----bcmf--khi--N
91-101472437----bcmf--khi--U
91-1016077-a---heiejk----Q
91-1015937-a---heiejk----Q
91-10148307-a---heiejk----O
91-10158477-a---heiejk----O
91-1015297-a---heiejk----O
91-04772189-a-cbheiejk----O
90-02348699-a-cbheiejk----X
89-0663929aa--bheiejk----P
91-0749029----ehehrhchm--O
91-01611149----ehehrhchm--V
90-03415810---txhehrhchm--N
91-101491910---tshehrhchm--X
90-02473210---eohehrhchm--W
90-031401010-abcbheiejk----O
92-00354810-abcbheiejk----O
91-10157311aaccbheieok----O
90-05857611aabcbheiejk----O
91-047391811aabcbheiejk----O
92-008891811aabcbheiejk----O
92-06062Unknown11aabcbheiejk----O
89-006403911aabcbheiejk----N
90-058821811aabcbheiejk----P
89-002274311aabcbheiejk----Q
91-10154311aaccceeiejk----O
90-02308311----bcmfmfkhiiiZ
91-10156313-a-cbheiejiejlkO
91-101501715eodopqhpqhkhkmnR
91-101511215eodopqhpqhkhkmnS
91-101531115eodopqhpqhkhkmnT
Nonepidemic MRSA90-0660913dod------------V
89-0761616----bcmf--kh---U
89-0585617----bcmf--khi--O
89-0659717----bcmf--khi--O
89-0692817----bcmf--khi--O
90-0536617----bcmf--khi--O
90-0464917----bcmf--khi--N
90-0114517----bcmf--khi--N
89-0042317-a---heiejk----O
89-0370619---eohe-rhchm--Y
90-02341110---eohehrhchm--X
89-02036111aabcbheiejk----O
90-05145111babcbheiejk----O
  • a Discrimination of epidemic strains was made on the basis of an association with hospital outbreaks involving at least two patients or staff members. MRSA strains that were isolated only once were defined as nonepidemic (4).

  • b The DNA repeats of the X region of thespa gene are coded by letters, as described previously (5). Hyphens indicate gaps in the alignment.