TABLE 1.

Serum hemolytic complement activity of various strains of mice after LPS challenge

Mouse strain	CVF (U)a	Hemolytic C activityb
WT	0	+
	7	−
C3+/+	0	+
	10	−
C3−/−	—	−
C5+/+	0	+
	7	±
	10	−
C5−/−	—	−
CR2+/+	—	+
CR2−/−	—	+

^aCVF or its vehicle (PFS) was injected iv 21 h before the LPS challenge. —, no CVF pretreatment.

^b+, present;−, absent;±, inconsistently present.