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Table 2 Antimicrobial susceptibility pattern of gram positives and negative from the medical inanimate surfaces at Ayder Specialized Comprehensive Hospital October 2016 to June 2017

From: Bacterial contamination and antimicrobial susceptibility patterns of intensive care units medical equipment and inanimate surfaces at Ayder Comprehensive Specialized Hospital, Mekelle, Northern Ethiopia

Isolates (N)

Pattern

E

P

AMC

CIP

CTR

TE

C

GEN

AMP

CX

Total (%)

CoNS (60)

S

20 (33.3)

24 (40)

22 (37.2)

46 (44)

34 (57.6)

52 (88.1)

41 (72.8)

50 (83)

4 (6.7)

NA

47.4

I

10 (16.7)

1 (1.7)

0

5 (8.4)

14 (22)

0

4 (6.7)

4 (6.7)

0

NA

6.7

R

30 (50)

35 (53.3)

38 (62.7)

9 (13.5)

12 (20.3)

8 (11.8)

15 (23.7)

6 (10.1)

56 (93.2)

NA

42.5

S. aureus (46)

S

8 (17.4)

9 (19.5)

17 (36.9)

31 (67.4)

19 (41.3)

36 (78.2)

31 (67.4)

35 (76)

5 (10.8)

12 (26.1)

40.5

I

15 (32.6)

3 (6.5)

0

4 (8.6)

14 (30.4)

3 (6.5)

3 (6.5)

1 (2.1)

0

0

8.8

R

23 (50)

34 (73.9)

29 (63)

11 (23.9)

13 (28.2)

7 (15.2)

12 (26)

10 (21.7)

41 (89.1)

34 (73.9)

50.5

Total (106)

S

28 (26.4)

33 (31.1)

39 (36.8)

77 (72.6)

53 (50)

88 (83)

75 (70.8)

85 (80.2)

9 (8.5)

12 (26.1)

44.9

I

25 (23.6)

4 (3.8)

0

9 (8.5)

28 (26.4)

3 (2.8)

7 (6.6)

5 (4.7)

0

0

7.4

R

53 (50)

69 (65.1)

67 (63.2)

20 (18.9)

25 (23.6)

15 (14.2)

26 (24.5)

16 (15.1)

97 (91.5)

34 (73.9)

47.9

Isolates

Pattern

AMC

CIP

CTR

TE

C

GEN

AMP

CTX

NA

AK

Total (%)

C. freundii (15)

S

0

14 (93.3)

15 (100)

14 (93.3)

15 (100)

15 (100)

2 (13.3)

15 (100)

0

12 (80)

68

I

2 (13.3)

0

0

1 (6.6)

0

0

1 (6.6)

0

0

0

2.6

R

13 (86.6)

1 (6.6)

0

0

0

0

12 (80)

0

15 (100)

3 (20)

29.3

K. pneumoniae (11)

S

0

9 (81.8)

4 (36.3)

6 (54.5)

5 (33.3)

11 (100)

1 (9)

2 (18.1)

2 (18.1)

8 (72.7)

42.3

I

1 (9)

1 (9)

1 (9)

2 (18.1)

1 (9)

0

0

0

4 (36.3)

2 (18.1)

10.8

R

10 (90.9)

1 (9)

6 (54.5)

3 (27.2)

5 (45.4)

0

10 (90.9)

9 (100)

5 (45.4)

1 (9)

47.2

E. aerogens (9)

S

0

8 (88.9)

9 (100)

9 (100)

9 (100)

9 (100)

0

9 (100)

0

8 (88.9)

67.8

I

6 (66.6)

1 (11.1)

0

0

0

0

0

0

0

0

7.8

R

3 (33.3)

0

0

0

0

0

9 (100)

0

9 (100)

1 (11.1)

24.4

P. vulgaris (2)

S

0

2 (100)

1 (50)

1 (50)

2 (100)

2 (100)

0

1 (50)

2 (100)

2 (100)

65

I

1 (50)

0

0

0

0

0

0

1 (50)

0

0

10

R

1 (50)

0

1 (50)

1 (50)

0

0

2 (100)

0

0

0

25

E. coli (11)

S

0

8 (72.7)

3 (27.3)

6 (50)

8 (72.7)

7 (63.75)

3 (25)

3 (27.3)

3 (27.3)

4 (36.4)

40.2

I

2 (18.2)

1 (9.1)

0

2 (18.2)

0

3 (27.3)

0

0

1 (9.1)

5 (45.4)

12.3

R

9 (81.8)

2 (18.2)

8 (72.7)

3 (27.3)

3 (27.3)

1 (9.1)

8 (72.7)

8 (72.7)

7 (63.7)

2 (18.2)

46.4

Total (48)

S

0

42 (84)

33 (66)

39 (78)

41 (82)

45 (90)

7 (14)

30 (60)

7 (14)

35 (70)

55.8

I

13 (26)

4 (8)

1 (2)

4 (8)

1 (2)

4 (8)

1 (2)

2 (4)

5 (10)

8 (16)

8.6

R

37 (74)

4 (8)

16 (32)

7 (14)

8 (16)

1 (2)

42 (84)

18 (36)

38 (76)

7 (14)

35.6

  1. AMC: amoxicillin–clavulanic; AMP: ampicillin; CX: cefoxitin; CRT: ceftriaxone; C: chloramphenicol; CIP: ciprofloxacin; CoNS: coagulase negative staphylococcus; E: erythromycin; GEN: gentamicin; I: intermediate; P: penicillin G; R: resistant; S: sensitive; TE: tetracycline