TABLE 3.

Effect of plasmid content and vlsE complementation on B. burgdorferi infection of C3H/HeN mice at 8 weeks postinfection

B. burgdorferi B31 clone	Plasmid		Shuttle vector			No. of 8-wk cultures positive/no. tested for sample site indicated
B. burgdorferi B31 clone	lp25	lp28-1	pBSV2	BBE22	vlsE	Heart	Bladder	Ear	Joint	Total
5A4	+	+	−	−	−	6/6	6/6	6/6	6/6	6/6
5A8	+	−	−	−	−	0/6	0/6	0/6	0/6	0/6
5A13/pBSV2	−	−	+	−	−	0/6	0/6	0/6	0/6	0/6
5A13/pBBE22	−	+	+	+	−	6/6	6/6	6/6	6/6	6/6
5A10/pBBE22:vlsE-2	−	+	+	+	+	6/6	6/6	6/6	6/6	6/6
5A10/pBBE22:vlsE-5	−	−	+	+	+	0/6	0/6	0/6	1/6	1/6