Antibiotic-Resistant Bacteria Are Major Threats of Otitis Media in Wollo Area, Northeastern Ethiopia: A Ten-Year Retrospective Analysis
Table 4
Antibiotic susceptibility profile of pathogenic bacteria isolated from ear discharges at Dessie Regional Health Research Laboratory from 2001 to 2011.
Antibiotics
Bacterial isolates
Proteus spp.
S. aureus
Pseudomonas spp.
E. coli
Citrobacter spp.
Enterobacter spp.
Klebsiella spp.
%
%
%
%
%
%
%
%
%
%
%
%
%
%
Amoxicillin
181
21.5
78.5
94
22.3
77.7
87
8.1
91.9
63
22.2
77.8
24
16.7
83.3
26
7.7
92.3
16
12.5
87.5
Tetracycline
237
7.7
92.3
175
41.7
58.3
164
23.2
76.8
158
36.1
63.9
51
25.5
74.5
51
27.5
72.5
24
25
75
TMP-SMX
221
39.8
60.2
156
70.5
29.5
100
8.0
92
93
73.1
26.9
38
39.5
60.5
40
45.7
54.3
36
27.8
72.2
Cephalothin
54
55.5
44.5
48
83.3
16.7
58
34.5
65.5
26
61.5
38.5
11
4/11
7/11
12
5/12
7/12
4
2/4
2/4
Ampicillin
37
0.5
99.5
16
18.6
81.4
14
4/14
10/14
28
10.7
89.3
3
1/3
2/3
3
1/3
2/3
5
0
5/5
Chloramphenicol
206
25.7
74.3
151
72.2
27.8
148
39.7
60.3
103
62.1
37.9
42
59.5
40.5
40
75.0
25
8
5/8
3/8
Ceftriaxone
967
5.0
95
77
63.6
36.4
110
22.7
77.3
102
54.9
45.1
21
57.1
42.9
25
40.0
60
17
23.5
76.5
Ciprofloxacin
114
93.0
7
102
99
1
134
90.3
9.7
69
91.3
8.7
35
97.1
2.9
38
97.8
2.2
9
9/9
0
Doxycycline
48
14.6
85.4
63
47.6
52.4
44
18.2
81.8
38
31.6
68.4
4
1/4
3/4
2
0/2
2/2
7
1/7
6/7
Erythromycin
136
8.1
91.9
200
68.5
31.5
156
15.4
84.6
87
17.2
82.8
6
1/6
5/6
39
15.4
84.6
10
2/10
8/10
Gentamicin
284
81.0
19
241
85.9
14.1
204
75.5
24.5
128
87.5
12.5
52
98.1
1.9
46
82.6
17.4
29
79.3
20.7
Cefotaxime
155
23.9
76.1
75
46.7
53.3
53
26.4
73.6
65
64.6
35.4
18
38.9
61.1
13
8/13
5/13
17
47.1
52.9
Kanamycin
51
56.9
43.1
23
78.3
21.7
13
3/13
10/13
30
70
30
6
3/6
3/6
5
4/5
1/5
1
1/1
0
Nitrofurantoin
37
70.2
29.8
40
87.5
12.5
11
11/11
0
14
9/14
5/14
—
—
—
—
—
—
5
3/5
2/5
Vancomycin
16
18.8
81.2
77
58.4
41.6
20
0
100
5
0
5/5
2
0
2/2
—
—
—
—
—
—
Carbenicillin
32
62.6
37.4
2
0
2/2
—
—
—
10
6/10
4/110
2
1/2
1/2
—
—
—
3
0
3/3
Clindamycin
33
78.8
21.2
50
74
26
21
47.6
52.4
16
81.3
18.7
2
1/2
1/2
1
0
1/1
1
1/1
0
TMP-SMX: trimethoprim-sulfamethoxazole; : number of total tests; %: percent of sensitivity; %: percent of resistance; for those samples ≤15, percentage of susceptibility indicated by fractional numbers: % = number of total sensitive/number of total tests (/) and % = number of total resistance/number of total tests (/).
