Table 2. Frequency Distribution of Class I Integron Gene in S. Infantis Based on Disc Diffusion Results a, b.
| antimicrobial Agent | Disc Diffusion (n = 50) | Integron Negative (n = 32) | Integron Positive (n = 18) | P Value |
|---|---|---|---|---|
| Nalidixic acid | 100 (50) | 100 (32) | 100 (18) | NS |
| Tetracycline | 100 (50) | 100 (32) | 100 (18) | NS |
| Streptomycin | 100 (50) | 100 (32) | 100 (18) | NS |
| Amoxicillin | 70 (35) | 78.1 (25) | 55.6 (10) | NS |
| Chloramphenicol | 64 (32) | 65.7 (21) | 61.1 (11) | NS |
| Trimethoprim | 66 (33) | 72 (22) | 61.1 (11) | NS |
| Amoxi-Clavulanic acid | 32 (16) | 40.6 (13) | 22.3 (3) | NS |
| Ceftazidime | 28 (14) | 12.5 (4) | 50 (10) | 0.009 |
| Colistin | 24 (12) | 25 (8) | 12.5 (4) | NS |
| Ampicillin | 10 (5) | 6.2 (2) | 16.6 (3) | NS |
| Gentamicin | 2 (1) | 3.1 (1) | 0 (0) | NS |
| Imipenem | 0 (0) | 0 (0) | 0 (0) | NS |
| Cefotaxime | 0 (0) | 0 (0) | 0 (0) | NS |
| Ciprofloxacin | 0 (0) | 0 (0) | 0 (0) | NS |
a Data are presented in No. (%).
b P < 0.05 was considered significant.