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Table 3 Antimicrobial susceptibility (%) of E. coli , Klebsiella spp. and P. mirabilis in non-repeated samples

From: Characterisation of bacterial growth and antimicrobial susceptibility patterns in canine urinary tract infections

Antimicrobial

Breakpoint S

Escherichia coli

Klebsiella spp.

Proteus mirabilis

All

A

B

C

All

A

B

C

All

A

B

C

(mg/L)

(429)

(204)

(110)

(115)

(11)

(3)

(2)

(69

(55)

(17)

(17)

(21)

Ampicillin

≤ 8

87.9

91.2

85.5

84.3

0.0

0.0

0.0

0.0

90.9

88.2

94.1

90.5

Amoxicillin/Clavulanic acid

≤ 8

87.2

89.7

85.5

84.3

72.7

66.7

100

66.7

94.5

100

94.1

90.5

Cefotaxime

≤ 1

99.8

99.5

100

100

100

100

100

100

98.2

100

94.1

100

Gentamicin

≤ 2

94.9

95.1

93.6

95.7

90.9

100

100

83.3

83.6

82.4

82.4

85.7

Enrofloxacin

≤ 0.5

97.9

98.5

95.5

99.1

90.9

100

100

83.3

96.4

100

88.2

100

Tetracycline

≤ 4

92.1

95.1

90.0

88.7

100

100

100

100

5.5

5.9

5.9

4.8

Trimethoprim/Sulphametoxazole

≤ 2/38

92.3

96.6

89.1

87.8

90.9

100

100

83.3

89.1

88.2

88.2

90.5

Nitrofurantoin

≤ 32

98.4

99.5

98.2

96.5

27.3

33.3

50.0

16.7

9.1

5.9

11.8

9.5

  1. Breakpoints for susceptibility (BP S) (mg/L) are indicated. The number of samples is shown inside brackets. The three submission categories; small animal referral hospitals, small animal clinics and mixed veterinary practices are labelled A, B and C, respectively.