Table 1 Antibiotic-resistance phenotypes and PCR detection of genes encoding antibiotic and disinfectant resistance in the MRSA strains
Antibiotic-resistance phenotypes | β- lact amase PROD | Antibiotic- resistance genotypes | Disinfectant-resistance genotypes | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Strain | SCCmec | Cefoxitin (MRSA) | CF | LEV | E | AM | TE | SXT | CTX | GE | CXM | FEP | DC | PE | ermA | ermB | ermC | mrsA | mef | tet(M) | tet(O) | tet(K) | vanA | vanB | aac(6 9 )Ie- aph(2 0)Ia | blaZ | qacA | qacB | qacC | |
S-58 | I | R | R | R | R | R | R | R | R | R | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | + | + | + | + | + |
S-76 | R | S | S | R | R | R | S | S | S | S | S | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | - | - | + | |
S-106 | R | R | R | R | R | R | S | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-10 | II | R | R | R | R | R | R | S | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + |
S-59 | R | R | R | R | R | R | S | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | - | - | + | |
S-66 | R | R | R | R | R | R | S | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | - | - | + | |
S-73 | R | S | S | R | R | R | S | R | S | S | R | S | R | + | + | + | + | - | - | + | - | + | - | - | - | + | + | + | + | |
S-75 | R | R | R | R | R | R | S | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | - | - | + | |
S-108 | R | R | S | R | R | R | S | R | R | R | R | R | R | + | + | + | + | - | - | + | - | + | - | - | + | + | + | + | + | |
S-16 | IV | R | S | S | R | R | R | S | R | S | S | S | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | - | - | + |
S-19 | R | R | R | R | R | R | S | R | R | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | + | + | + | + | + | |
S-22 | R | R | R | R | R | R | R | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-36 | R | R | R | R | R | R | R | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-52 | R | R | R | R | R | R | S | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-77 | R | S | S | R | R | R | S | R | S | S | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-79 | R | S | S | R | R | R | S | R | S | S | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-82 | R | S | S | R | R | R | S | R | S | S | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-93 | R | S | S | R | R | R | S | R | S | R | R | S | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-103 | R | R | R | R | R | R | S | R | S | R | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-107 | R | S | S | R | R | R | S | R | S | S | R | R | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
S-8 | R | R | R | R | R | R | S | R | S | R | R | S | R | + | + | + | - | - | - | + | - | + | - | - | - | + | + | + | + | |
Nº. of resistant strains | 21 | 13 | 12 | 21 | 21 | 21 | 3 | 20 | 3 | 14 | 19 | 20 | 21 | 21 | 21 | 21 | 2 | 0 | 0 | 21 | 0 | 21 | 0 | 0 | 3 | 21 | 16 | 16 | 21 | |