Table 5 MIC ranges, MIC₅₀ and MIC₉₀ values for 40 Mycoplasma hyosynoviae isolates. Results are shown in μg/ml. ¹Only 12 isolates were tested against valnemulin. ²Only 2 isolates were tested against valnemulin. ³MIC₅₀ and MIC₉₀ values were not calculated due to sample size. ⁴A total of 14 isolates were tested against valnemulin

Spain (18 isolates)¹

MIC range

0.25–1

0.5–2

0.008–0.06

0.25–1

0.03–0.25

0.016–0.06

MIC₅₀

0.5

1

0.016

0.25

0.06

0.016

MIC₉₀

1

1

0.06

0.5

0.25

0.06

Italy (18 isolates)

MIC range

0.5–1

0.5–2

0.008–0.06

0.25–1

0.03–0.5

–

MIC₅₀

0.5

1

0.016

0.5

0.5

–

MIC₉₀

1

2

0.016

1

0.5

–

Portugal (4 isolates)^2,3

MIC range

0.5–1

0.5–1

0.016

0.25–1

0.06–0.5

0.016–0.06

Total (40 isolates)³

MIC range

0.25–1

0.5–2

0.008–0.06

0.25–1

0.03–0.5

0.016–0.06

MIC₅₀

0.5

1

0.016

0.5

0.125

0.016

MIC₉₀

1

2

0.06

1

0.5

0.06

M. hyosynoviae strain S16

MIC

0.25

0.25

0.016

0.125

0.03

0.008