TABLE 2.

Phenotypic and genetic characterization of nuc among SIG strains

Characteristic	Rate (%) of positive strains or range of sequence similarity (%)
	S. pseudintermedius (n = 83)	S. intermedius (n = 12)	S. delphini
			Group A (n = 17)	Group B (n = 5)
Phenotype (thermonuclease production)	100	67	88	60
Detection by PCR1	100	100	0	100
Detection by PCR2	0	0	100	0
Sequence similarity against S. pseudintermedius LMG 22219T	98.8-100	85.6-87.2	79.2-80.3	95.9-96.1