Table 1.

Traditional neutralization activities of anti-M and anti-H IgA and IgG MAbs^a

MAb	Specificity	15 μg/ml MAb		30 μg/ml MAb
		Virus titer (PFU/well)	% Reduction of virusb	Virus titer (PFU/well)	% Reduction of virusb
5H7-IgA	Anti-M	34.00 ± 0.58	0.00	35.00 ± 2.31	0.00
5H7-IgG	Anti-M	32.00 ± 0.58d	4.48	36.50 ± 0.87	0.00
16CD11-IgA	Anti-H	7.50 ± 0.29c	77.61	3.00 ± 0.58c	91.04
16CD11-IgG	Anti-H	14.50 ± 0.87c	56.72	13.00 ± 0.58c	61.19
Irrelevant IgA	Anti-HIV gp41	30.50 ± 1.44d	8.96	31.00 ± 1.15d	7.46
No MAb		33.50 ± 0.87	0.00	33.50 ± 0.87	0.00

^aExperiments were repeated on at least two occasions with similar results. The results of a representative experiment are shown. The data are means ± standard errors of the mean (SEM) (n = 3).

^bCompared to no-antibody control.

^cMean virus titers were significantly lower (P ≤ 0.0001) than those from cells exposed to no antibody.

^dMean virus titers were not significantly lower (P ≥ 0.05) than those from cells exposed to no antibody.