Table 5.

Antibiotic resistance patterns of the non-psychrotolerant and psychrotolerant B. cereus isolated from green leaf lettuce in the cold chain.

	No. (%) of B. cereus Isolates with Indicated Response
	Non-psychrotolerant B. cereus (n = 83)			Psychrotolerant B. cereus (n = 18)
	Resistance	Intermediate	Sensitive	Resistance	Intermediate	Sensitive
Tetracycline	13 (15.7)	50 (60.2)	20 (24.1)	2 (11.1)	3 (16.7)	13 (72.2)
Gentamicin	0 (0.0)	0 (0.0)	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)
Imipenem	0 (0.0)	0 (0.0)	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)
Vancomycin	1 (1.2)	0 (0.0)	82 (98.8)	0 (0.0)	0 (0.0)	18 (100.0)
Ciprofloxacin	0 (0.0)	0 (0.0)	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)
Erythromycin	0 (0.0)	0 (0.0)	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)
Rifampin	65 (78.3)	13 (15.7)	5 (6.0)	4 (22.2)	6 (33.3)	8 (44.4)
Chloraphenicol	0 (0.0)	0 (0.0)	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)
Clindamycin	0 (0.0)	0 (0.0)	83 (100.0)	0 (0.0)	8 (44.4)	10 (55.6)
Penicillin	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)	0 (0.0)	0 (0.0)
Ceftriaxone	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)	0 (0.0)	0 (0.0)
Cefotaxim	83 (100.0)	0 (0.0)	0 (0.0)	18 (100.0)	0 (0.0)	0 (0.0)