Table 1. SCCmec types of methicillin-resistant NAS strains isolated from broiler farms.
NAS (n=isolates) | mecA positive (%) | mec gene | ccr gene | SCCmec type | Isolated from |
---|---|---|---|---|---|
CoVS (68) | |||||
Staphylococcus agnetis (51) | - | - | - | - | |
Staphylococcus chromogenes (17) | - | - | - | - | |
CoNS (148) | |||||
Staphylococcus arlettae (2) | - | - | - | - | |
Staphylococcus cohnii (5) | - | - | - | - | |
Staphylococcus condimenti (1) | - | - | - | - | |
Staphylococcus epidermidis (15) | 3 (20) | B | A2B2 | IV | Worker |
A | A2B2 | II | Worker | ||
C2 | C | V | Broiler | ||
Staphylococcus gallinarum (12) | - | - | - | - | |
Staphylococcus haemolyticus (1) | 1 (100) | C2 | C | V | Environment |
Staphylococcus lentus (5) | |||||
Staphylococcus lugdunesis (2) | |||||
Staphylococcus saprophyticus (20) | - | - | - | - | |
Staphylococcus sciuri (1) | 1 (100) | A | - | NT | Broiler |
Staphylococcus simulans (27) | - | - | - | - | |
Staphylococcus ureilyticus (3) | 1 (33.3) | - | C | NT | Broiler |
Staphylococcus warneri (5) | - | - | - | - | |
Staphylococcus xylosus (49) | - | - | - | - |
SCCmec, staphylococcal cassette chromosome mec; NAS, non-aureus staphylococci; ccr, chromosomal cassette recombinase; CoVS, coagulase-variable staphylococci; CoNS, coagulase-negative staphylococci; NT, non-typeable.