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Table 2 Culture results: blood, rectal swab, cot swab and mothers’ hands swab specimens

From: Bacteremia in critical care units at Bugando Medical Centre, Mwanza, Tanzania: the role of colonization and contaminated cots and mothers’ hands in cross-transmission of multidrug resistant Gram-negative bacteria

Variables

Blood culture

Rectal culture

Cots culture

CGs’ hands culture

n

%

n

%

n

%

n

%

Culture results

Positive

69

34.5

86

43

64

32

37

18.5

Negative

131

65.5

114

57

136

68

163

81.5

Classification of positive blood culture

Gram-positive

10

14.5

NA

NA

NA

NA

NA

NA

Gram-negative

59

85.5

NA

NA

NA

NA

NA

NA

Genus and species of isolated bacteria#

K. pneumoniae

28

47.5

49

45.4

18

28.1

17

45.9

Acinetobacter spp

19

32.2

23

21.3

35

54.7

8

21.6

E. coli

5

8.5

14

12.9

1

1.6

2

5.4

C. freundii

3

5.1

10

9.3

3

4.7

1

2.7

E. aerogenes

1

1.7

4

3.7

6

9.4

5

13.5

Others*

3

5.1

8

7.4

1

1.6

4

10.8

Resistant to 3GCs (blood culture only)

Positive

55

93.2

NA

NA

NA

NA

NA

NA

Negative

4

6.8

NA

NA

NA

NA

NA

NA

Amp-C beta lactamase (FOX≤18 mm)

Positive

23

38.9

50

46.3

48

75

22

59.5

Negative

36

61.1

58

53.7

16

25

15

40.5

Genus and species of potential Amp-C beta lactamase producers

Acinetobacter spp

13

56.5

22

44

34

70.8

8

36.4

C. freundii

3

13.0

7

14

3

6.3

1

4.5

K. pneumoniae

2

8.7

12

24

4

8.3

5

22.7

E. coli

2

8.7

2

4

1

2.1

1

4.5

Others**

3

12.9

7

14

6

12.5

7

31.8

  1. #Blood culture: GNB only
  2. *Blood culture: E. cloacae (n = 1), Salmonella spp. (n = 1) and unidentified GNB (n = 1)
  3. *Rectal swabs: E. cloacae (n = 2), Shigella spp. (n = 2), P. aeruginosa (n = 1), Salmonella spp. (n = 1), K. oxytoca (n = 1) and P. agglomerans (n = 1)
  4. *Neonatal cot swabs: A. hydrophila (n = 1)
  5. *Mothers’ hands swabs: E. cloacae (n = 3), K. oxytoca (n = 1)
  6. **Blood culture: E. aerogenes (n = 1), Salmonella spp. (n = 1) and unidentified GNB (n = 1)
  7. **Rectal swabs: E. aerogenes (n = 3), E. cloacae (n = 2), P. aeruginosa (n = 1) and Salmonella spp. (n = 1)
  8. **Neonatal cot swabs: E. aerogenes (n = 6)
  9. **Mothers’ hands swabs: E. aerogenes (n = 4), E. cloacae (n = 2) and K. oxytoca (n = 1)