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. 2009 Jul 17;75(18):5809–5813. doi: 10.1128/AEM.00206-09

TABLE 4.

External validation of the IR spectral database for subspecies classifications^a

Biotype					Serotype					ail
Type	n_ref	n_val	Identification (%)		Type	n_ref	n_val	Identification (%)		ail status	n_ref	n_val	Identification (%)
Type	n_ref	n_val	Correct	Incorrect	Type	n_ref	n_val	Correct	Incorrect	ail status	n_ref	n_val	Correct	Incorrect
1A	26	15	100	0	O:3	9	10	99.7	0	Positive	31	26	99.9	0
2	12	16	99.2	0	O:5	12	7	78.3	1.8	Negative	31	25	91.8	1.3
4	9	10	94.2	0	O:9	6	12	99.5	0
					Other^b	21	13	88.0	8.5
Total	47	41	98.3	0	Total	48	42	92.5	2.9	Total	62	51	98.5	0.7

^a

n_ref, number of isolates used for reference; n_val, number of isolates used for validation.

^b

Serotypes other than O:3, O:5, or O:9.