Table 3 MIC_50/90 values of human and animal C.difficile isolates

Humans (n = 32)

MIC₅₀

1.5

1

0.094

3

6

MIC₉₀

3

> 256

0.19

> 256

12

Range

0.38- > 256

0.50- > 256

0.025-8

1- > 256

1.5-64

Animals (n = 18)

MIC₅₀

1

0.75

0.125

3

6

MIC₉₀

2

1

0.19

5

8

Range

0.38-3

0.19-1

0.047-4

0.023-6

1.5-16

All (n = 50)

MIC₅₀

1.5

1

0.094

3

6

MIC₉₀

3

1.5

0,19

8

8

Range

0.38- > 256

0.19- > 256

0.025-8

0.023- > 256

1.5-64