TABLE 2.

Percentages of positive samples of five Klebsiella species by laboratory and test^a

Biochemical test	K. pneumoniae (n = 28)			K. ozaenae (n = 27)			K. rhinoscleromatis (n = 10)			K. oxytoca (n = 30)			K. terrigena (n = 29)
	CPHL	NRL	SSI	CPHL	NRL	SSI	CPHL	NRL	SSI	CPHL	NRL	SSI	CPHL	NRL	SSI
Lysine decarboxylase	89.3	85.7	96.4	25.9	29.6	25.9	0.0	0.0	10.0	100.0	96.7	100.0	100.0	100.0	100.0
Ornithine decarboxylase	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Indole	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	90.0	100.0	100.0	0.0	0.0	0.0
Methyl red	10.7	3.6	10.7	85.2m	92.6	63.0	90.0m	30.0	90.0	40.0m	0.0	63.3	27.6m	62.1	96.6
Voges-Proskauer	96.4	96.4	96.4	3.7	3.7	7.4	0.0	0.0	10.0	100.0	100.0	100.0	86.2	89.7	100.0
Growth at 10°C	57.1m	0.0	0.0	14.8m	0.0	0.0	0.0	0.0	0.0	93.3	93.3	86.7	100.0	100.0	100.0
Gas from lactose 44.5°C	89.3	89.3	89.3	11.1	11.1	3.7	0.0	0.0	10.0	0.0	6.7	3.3	0.0	0.0	0.0
Malonate	89.3	100.0	96.4	11.1	7.4	3.7	100.0	100.0	100.0	100.0	93.3	96.7	96.6	93.1	93.1
Fermentation of:
d-Arabinose	0.0m	57.1	60.7	0.0m	22.2	29.6	0.0m	10.0	20.0	86.7m	96.7	100.0	0.0	0.0	3.4
β-Gentiobiose	100.0m	75.0	100.0	70.4m	66.7	100.0	10.0m	50.0	10.0	100.0	100.0	100.0	100.0	100.0	100.0
d-Melizitose	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	73.3	66.7	70.0	100.0	100.0	100.0
2-Deoxy-d-ribose	7.1	3.6	10.7	0.0m	11.1	7.4	0.0m	0.0	60.0	0.0m	0.0	16.7	96.6	96.6	96.6
l-Sorbose	64.3	57.1	75.0	44.4	55.6	44.4	0.0m	20.0	30.0	100.0	100.0	100.0	89.7	89.7	93.1
d-Tagatose	42.9	28.6	42.9	0.0m	25.9	0.0	10.0	20.0	20.0	90.0	86.7	90.0	17.2	13.8	13.8
Utilization of:
m-Hydroxy-benzoate	0.0	0.0	0.0	0.0	0.0	7.4	0.0	0.0	10.0	100.0	96.7	100.0	41.4	65.5	82.8
Histamine	0.0	3.6	0.0	0.0	0.0	3.7	0.0	0.0	0.0	0.0	0.0	0.0	96.6	100.0	96.6
Hydroxy-l-proline	35.7	21.4	0.0	0.0	7.4	0.0m	0.0	20.0	6.7	0.0	0.0	10.3	41.4	37.9
Degradation of pectate	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	100.0	96.7	100.0	0.0	0.0	0.0

^aTests showing ≤80% agreement between laboratories are considered to be method (m) dependent, as indicated.