TABLE 2.

Anti-SIV responses of treated and control monkeys^a

Treatment	Animal	Absorbance at 405 nm at wk postchallenge				No. of antibody-negative animals/total
		2	4	8	12
CAP:I	89D420	0.182	0.221	0.169	0.034	3/6
	H608	0.171	0.141	0.151	0.035
	359L	0.167	0.455	ND	ND
	407L	0.157	0.156	0.160	0.043
	H671	0.170	0.426	ND	ND
	89D367	0.170	0.304	ND	ND
CAP:II	89C001	0.168	0.055	0.048	0.039	4/6
	P778	0.181	0.089	0.013	0.035
	976W	0.188	0.236	1.913	1.486
	P851	0.193	0.167	0.377	0.172
	936P	0.193	0.035	0.036	0.040
	P407	0.158	0.066	0.087	0.053
Control	89D264	0.159	0.371	0.853	0.595	0/4
	89D205	0.175	0.466	ND	ND
	59R	0.156	0.495	1.069	0.347
	AH37	0.159	0.452	0.765	0.467

^aResults in italics correspond to single treatment and challenge. A whole-virus antigen ELISA was used to evaluate seroconversion to SIV. The historical cutoff for this assay is an optical density of 0.250. ND, not done. Positive responses are indicated in bold.