Table 5 The median and interquartile range (IQR) of the inhibition zones (mm) produced by the disinfection products against selected K. pneumoniae isolates.

From: Emerging biofilm formation and disinfectant susceptibility of ESBL-producing Klebsiella pneumoniae

Sampling

Origin

Inhibition zone (mm) products tested

Disinfectant

A

Disinfectant B

Disinfectant C

Disinfectant D

Disinfectant E

Poultry

Diseased (n = 6)

12a

IQR 11–13

49ab

IQR 47–53

40a

IQR 32–45

19a

IQR 17–21

16

IQR 14–18

Equine

Diseased (n = 4)

0b

32b

IQR 28–49

21b

IQR 16–26

15b

IQR13-16

14

IQR13-16

Water

Environmentaln(n = 3)

11a

IQR 10–13

55a

IQR 52–65

30ab

IQR 28–31

15ab

IQR 14–17

13

IQR 13–14

Wild

Environmental (n = 3)

0b

41ab

IQR 40–42

21b

IQR 20–22

13b

IQR 12–14

14

IQR 13–15

P value

0.000

0.02

0.002

0.009

0.191

  1. Disinfectants used: Disinfectant A (Potassium peroxymonosulfate,1%), Disinfectant B (peracetic acid and hydrogen peroxide, 1%), Disinfectant C (17.2% isopropanol), Disinfectant D (quaternary ammonium compounds, 0.5%), and Disinfectant E (quaternary ammonium compounds & glutaraldehyde, formaldehyde, 1%).
  2. Different zones of different superscript letters (a,b,c & ab) of the same column are significantly different at P ≤ 0.05.