Antimicrobial agents Resistant (R) isolates (%) Intermediate (I) isolates (%) Sensitive (S) isolates (%) Gentamycin 7 (23.3%) 0 23 (76.7%) Penicillin 30 (100%) 0 0 Imipenem 0 0 100 (100%) Chloramphenicol 16 (53.33%) 0 14 (46.67%) Tetracycline 28 (93.24%) 1 (3.34%) 1 (3.34%) Erythromycin 30 (100%) 0 0

Table 7: Susceptibilities of 30 isolates from sample 1, 2, 3 and 4 to different antibiotics.