Table 1 Tetracycline resistance profiles of clostridial isolates

 Tet^S isolates (n = 18)

< 0.125

< 0.047

< 0.047

 SSCC37615

8

1.5

1.5–3

 SSCC18838

8–16

1.5–3

1.5–3

 SSCC18392

8–16

3

3

 SSCC32135

8

1.5

1.5–3

 UMC2

< 0.125

< 0.047

0.094

 R28058

32

6

6

 JIR4 (+ control)

8–16

1.5–3

3

 JIR325 (− control)

< 0.125

< 0.047

0.094

 630 (+ control)

> 32

12

N/A

 CD37 (− control)

< 0.125

< 0.094

N/A

 MCD43

4

0.375

N/A

 MCD46

2–4

0.375

N/A