Table 2 Multi-drug resistance gene profile and the sequence types identified among 124 S. aureus isolates from bulk tank milk of 189 U.S. dairy farms

ant(6)-Ia, aph(3′)-III, blaZ, mecA, mph(C), msr(A), norA [1]

ST72

1 (0.8)

ant(6)-Ia, aph(3′)-III, blaZ, mph(C), msr(A), norA [1]

ST87

1 (0.8)

aadD, erm(B), fexA, norA, tet(L) [1]

ST352

1 (0.8)

aph(3′)-Ia, fexA, norA [2]

ST1

1 (0.8)

Unknown ST

1 (0.8)

aph(3′)-Ia, lnu(A), norA [1]

ST352

1 (0.8)

aph(3′)-Ia, msr(A), norA [1]

ST151

1 (0.8)

aph(3′)-Ia, norA, tet(K) [1]

ST97

1 (0.8)

aph(3′)-Ia, norA [9]

ST151

1 (0.8)

ST350

2 (1.6)

ST351

1 (0.8)

ST352

2 (1.6)

ST2187

6 (4.9)

ST3028

1 (0.8)

blaZ, norA [3]

ST9

1 (0.8)

ST124

1 (0.8)

Unknown ST

1 (0.8)

fexA, norA [1]

ST352

1 (0.8)

norA, tet(K) [1]

ST352

1 (0.8)

norA, tet(M) [1]

ST351

1 (0.8)