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Table 1 Isolates from external and gut homogenates of cockroaches collected from neonatal ICU of Tikur Anbessa Hospital, Addis Ababa, Ethiopia, July 2011

From: High load of multi-drug resistant nosocomial neonatal pathogens carried by cockroaches in a neonatal intensive care unit at Tikur Anbessa specialized hospital, Addis Ababa, Ethiopia

Isolate

External (%)

Gut (%)

Both*(%)

Total

P-value

Klebsiella oxytoca

20(18.7)

24(19.4)

11(25.6)

44(19)

0.87

Klebsiella pneumoniae

16(15)

24(19.4)

9(20.9)

40(17.4)

 

Citrobacter spp

14(13)

17(13.7)

5(11.7)

31(13.4)

0.76

Citrobacter diversus

11(10.2)

13(10.5))

2(4.6)

24(10.4)

 

Enterobacter cloacae

15(14)

13(10.5)

5(11.7)

28(12.2)

 

Pseudomonas aeruginosa

10(9.3)

9(7.3)

5(11.7)

19(8.3)

 

Providencia rettgeri

2(1.9)

8(6.4)

-

10(4.3)

 

Klebsiella ozaenae

4(3.8)

3(2.4)

-

7(3.0)

 

Enterobacter aeruginosa

5(4.7)

2(1.6)

1(2.3)

7(3.0)

 

Salmonella spp

2(1.9)

4(3.2)

1(2.3)

6(2.6)

 

Non Group A streptococcus

3(2.9)

1(0.8)

2(4.6)

4(1.7)

 

Staphylococcus aureus

1(0.9)

3(2.4)

1(2.3)

4(1.7)

 

Escherichia coli

1(0.9)

2(1.6)

1(2.3)

3(1.3)

 

Acinetobacter spp

2(1.9)

1(0.8)

-

3(1.3)

 

Shigella flexneri

1(0.9)

-

-

1(0.4)

 

Total

107(100)

124(100)

43(100)

231(100)

0.480

  1. * The number of similar isolates from each one of external and gut homogenates of individual batch of cockroaches