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Table 2 Viability (%) and plate count results of the preliminary dose effect experiment with and without exposure to benzalkonium chloride

From: Effect of subinhibitory exposure to quaternary ammonium compounds on the ciprofloxacin susceptibility of Escherichia coli strains in animal husbandry

E. coli isolate

  

BKC concentration (g/L)

   

0.0000

0.00675

0.01350

0.02700

KL6

Viability (%)

Live

97.15

71.38

46.49

23.16

Intermediate

0.61

21.57

22.59

75.39

Dead

2.06

6.94

30.89

1.43

Plate counts (log CFU/mL)

 

8.77

8.61

8.08

>  4.00

KQ26

Viability (%)

Live

97.64

54.73

35.67

0.34

Intermediate

0.35

8.32

14.47

98.20

Dead

1.60

36.45

49.70

1.41

Plate counts (log CFU/mL)

 

9.15

8.81

8.16

4.71

VA57

Viability (%)

Live

92.13

84.33

36.22

3.64

Intermediate

1.44

2.04

12.02

94.33

Dead

5.46

13.44

51.62

1.94

Plate counts (log CFU/mL)

 

8.97

8.77

7.95

6.02

ATCC 10536

Viability (%)

Live

96.97

78.26

45.63

0.87

Intermediate

0.88

8.64

22.47

98.36

Dead

1.93

12.58

31.70

0.75

Plate counts (log CFU/mL)

 

8.98

7.69

7.23

3.87

  1. CFU colony forming units, BKC benzalkoniumchloride
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BMC Microbiology

ISSN: 1471-2180

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