Table 5.

Multiple antibiotic resistances of Listeria strains isolated from the chlorinated effluents.

Antibiotics	Number of isolates involved	Percentage (%)
E, SMX, LZD, PG, AP	7a	31
E, LZD, PG, AP	2b	8.7
KF, E, SMX, LZD, PG, AP	2b	8.7
E, TM, LZD, MFX, PG, AP	1b	4.3
E, LZD, MFX, PG, AP	1b	4.3
C, KF, E, S, T, SMX, LZD, GAT, PG, AP	1b	4.3
E, S, T, SMX, LZD, MFX, PG, AP	1b	4.3
KF, E, S, SMX, TM, LZD, PG, AP	1b	4.3
CRO, KF, E, S, SMX, LZD, PG, AP,	1b	4.3
E, S, SMX, LZD, PG	1b	4.3
C, E, GM, S, SMX, TM, IMI, PG	1b	4.3
GM, TM, IMI, AP	1b	4.3
ATM, C, GM, S, T, TM, CIP, IMI, PG, AP	1b	4.3
GM, S, T, TM, LZD, IMI, PG, AP	1b	4.3
Total	22	95.7

Legend: ATM = Aztreonam; E = Erythromycin; AP = Ampicillin; LZD = Linezolid; PG = Penicillin G; KF = Cephalothin; SMX = Sulphamethoxazole; TM = Trimethoprim; MFX = Moxifloxacin; C = Chloramphenicol; S = Streptomycin; GAT = Gatifloxacin; CRO = Ceftriaxone; IMI = Imipenem; GM = Gentamycin; T = Tetracycline; CIP = Ciprofloxacin.

^aOne strain of L. innocua and six strains of L. ivanovii;

^bStrains of L. Ivanovii.