Table 4.
Antibiotic susceptibility patterns of 22 L. monocytogenes isolates
| Meat sample | Isolate no. | ERIC-PCR group | Degree of sensitivity to antimicrobial agent | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AMP | AK | CTX | CAZ | CRO | C | GN | IPM | PG | Te | SXT | |||
| Chicken | 1 | A | S | S | R | R | R | S | S | S | S | S | S |
| 2 | A | S | S | R | R | R | S | S | S | S | S | S | |
| 3 | F | S | S | R | R | R | S | S | S | S | S | S | |
| 4 | C | S | S | R | R | R | S | S | S | S | S | S | |
| 5 | C | S | S | R | R | R | S | S | S | S | S | S | |
| 6 | D | S | S | R | R | R | S | S | S | S | S | S | |
| 7 | D | S | S | R | R | R | S | S | S | S | S | S | |
| 8 | B | S | S | R | R | R | S | S | S | S | S | S | |
| Beef | 9 | A | S | S | I | S | R | S | S | S | S | S | S |
| 10 | A | S | S | R | I | R | S | S | S | S | S | S | |
| 11 | A | S | S | R | R | R | S | S | S | S | S | S | |
| 12 | E | S | S | R | R | R | S | S | S | S | S | S | |
| Pork | 13 | A | S | S | R | R | R | S | S | S | S | S | S |
| 14 | A | S | S | R | R | R | S | S | S | S | S | S | |
| 15 | E | S | S | R | I | I | S | S | S | S | S | S | |
| 16 | A | S | S | R | R | R | S | S | S | S | I | S | |
| 17 | D | S | S | R | R | R | S | S | S | S | S | S | |
| 18 | A | S | S | R | R | R | S | S | S | S | S | S | |
| 19 | A | S | S | R | R | R | S | S | S | S | S | S | |
| 20 | A | S | S | R | R | R | S | S | S | S | S | S | |
| 21 | A | S | S | R | R | R | S | S | S | S | S | S | |
| 22 | A | S | S | R | R | R | S | S | S | S | S | S | |
AMP=Ampicillin; AK=Amikacin; C=Chloramphenicol; CAZ=Ceftazidime; CRO=Ceftriaxone; CTX=Cefotaxime; ERIC-PCR=Enterobacterial repetitive intergenic consensus–polymerase chain reaction; GN=Gentamicin; I=Intermediate sensitivity (moderately sensitive); IPM=Imipenem; PG=Penicillin; R=Resistant; S=Highly sensitive; SXT=Sulphamethoxazole-trimethoprim; Te=Tetracycline