Antibiotic Resistant Bacterial Isolates from Captive Green Turtles and In Vitro Sensitivity to Bacteriophages
Table 2
Number of isolates from the four sampling sites1 at a minimum inhibitory concentration (MIC2) in mg/l against eight antibiotics.
(a)
Number of isolates at a MIC (mg/l) (ReefHQ)
Antibiotic agent
≤0.002
0.004
0.008
0.015
0.031
0.062
0.125
0.25
0.5
1
2
4
8
16
32
64
128
256
>256
% res
Amoxi./clav.
6
1
3
2
3
2
3
|
5
2
3
33.3
Ampicillin
8
3
2
2
|
2
2
3
8
50
Ceftiofur
8
1
1
2
1
1
3
2
6
|
5
16.6
Chloramphenicol
6
1
1
8
5
4
2
|
1
2
10
Doxycycline
2
3
2
1
1
7
|
7
2
30
Enrofloxacin
7
1
3
5
2
5
2
|
3
1
1
16.6
Erythromycin
6
1
1
2
1
3
|
10
6
53.3
Trim./sulf.
8
1
1
2
4
4
5
|
1
2
1
1
16.6
(b)
Number of isolates at a MIC (mg/l) (Fitzroy)
Antibiotic agent
≤0.002
0.004
0.008
0.015
0.031
0.062
0.125
0.25
0.5
1
2
4
8
16
32
64
128
256
>256
% res
Amoxi./clav.
1
6
3
2
4
1
|
1
1
1
15
Ampicillin
1
1
2
3
4
1
|
2
1
1
4
40
Ceftiofur
2
1
3
1
1
2
2
3
2
1
|
1
1
10
Chloramphenicol
1
2
2
9
3
1
|
2
10
Doxycycline
1
1
2
8
4
3
|
1
5
Enrofloxacin
1
2
3
4
6
|
3
1
20
Erythromycin
1
1
4
4
|
10
50
Trim./sulf.
1
4
1
6
5
2
|
1
5
(c)
Number of isolates at a MIC (mg/l) (Magnetic Island)
Antibiotic agent
≤0.002
0.004
0.008
0.015
0.031
0.062
0.125
0.25
0.5
1
2
4
8
16
32
64
128
256
>256
% res
Amoxi./clav.
1
1
1
1
1
1
|
1
2
1
3
53.8
Ampicillin
1
1
2
|
1
1
2
5
69.2
Ceftiofur
1
3
1
1
|
1
3
3
53.8
Chloramphenicol
1
2
1
1
5
3
|
0
Doxycycline
1
2
1
1
5
|
3
23
Enrofloxacin
2
1
|
2
3
2
3
77
Erythromycin
1
2
1
4
|
5
38.5
Trim./sulf.
4
5
3
1
|
0
(d)
Number of isolates at a MIC (mg/l) (Orpheus)
Antibiotic agent
≤0.002
0.004
0.008
0.015
0.031
0.062
0.125
0.25
0.5
1
2
4
8
16
32
64
128
256
>256
% res
Amoxi./clav.
3
|
1
1
2
1
62.5
Ampicillin
3
|
1
4
62.5
Ceftiofur
3
1
|
3
1
50
Chloramphenicol
2
1
4
1
|
0
Doxycycline
2
1
1
3
1
|
0
Enrofloxacin
2
1
|
2
1
2
62.5
Erythromycin
3
1
1
|
1
12.5
Trim./sulf.
3
3
1
|
1
12.5
ReefHQ Turtle Hospital, Fitzroy Island Rehabilitation Centre, Magnetic Island, and Orpheus Island. Vertical bars (|) are the epidemiological cut-offs (numbers in bold after | are counted as antibiotic resistant isolates). Last column is the percentage of resistant bacteria (% res) for each antibiotic.
