TABLE 1.

N. meningitidis serogroup B strains

Strain	Country of origin	Year isolated	Reference	Serologic classification	ET complexd	NspA sequencee	Previously reported anti-NspA reactivitya
							Surface binding	Bactericidal activity
8047	U.S.	1978	Zollinger, CHORIb	2b:P1.5,2	ND	yes	+	+
CU385	Cuba	1980	Sacchi et al.	4,7:P1.19,15	5	yes	+	+
BZ198	The Netherlands	1986	Caugant et al.	NT:P.NSTc	154	no	+	+
S3446	U.S.	1973	Sacchi et al.	19,14:P1.23,14	8	no	+	− (static)
1000	USSR	1989	CHORI	NT:P1.5	61	no	+	−
BZ232	The Netherlands	1964	Caugant et al.	NT:P1.2	76	yes	−	−
NG3/88	Norway	1988	Caugant et al.	8:P1.1	A4 complex	yes	−	−
NGP165	Norway	1974	CHORI	NT:P1.2	37	yes	−	−
MC58	United Kingdom	1985	McGuinness et al.	15:P1.7,16	5	yes	−	−
M986	U.S.	1963	Sacchi et al.	2a:P1.5,2	165	yes	−	−

^aPreviously reported results from Moe et al. using murine polyclonal antisera (16). Surface binding was determined by flow cytometry. Static, strains that were inhibited but not killed in the assay (≥50 but <100% survival at 60 min). 

^bCHORI, determined by our laboratory. 

^cNT, nonserotypeable. NST, nonserosubtypeable. 

^dDetermined by electrophoretic typing (ET) (6); ND, not determined. 

^ePreviously reported (16).