TABLE 1.

Biochemical and physiological characteristics of the isolate from the patient and available information for L. innocua and L. monocytogenes

Characteristic or test	Resulta for:
	Isolate	L. monocytogenesb	L. innocuab
Gram stain	Small gram-positive rods	Small gram-positive rods	Small gram-positive rods
Motility at:
22°C	+	+	+
37°C	−	−	−
Beta-hemolysis	−	+	−
CAMP test with S. aureus	+	+	−
Hydrolysis of:
Esculin	+	+	+
Hippurate	+	+	+
Acidification of:
Glucose	+	+	+
d-Xylose	−	−	−
l-Rhamnose	+	+	V
Mannitol	−	−	−
α-Methyl-d-mannoside	+	+	+
Rapid slide test	+	NA	NA

^a+, positive; −, negative; V, variable; NA, not available. The serovar associated with the isolate was 6a, those associated, with L. monocytogenes are 1/2a, 1/2b, 1/2c, 3a, 3b, 3c, 4a, 4b, 4ab, 4c, 4d, 4e, and 7, and those associated with L. innocua are 4ab, 6a, and 6b and an undesignated serovar.

^bSee reference 8.