TABLE 2.

Serum and mucus antibody responses over time

Immunogen	Serum antibody titera at wk:				Mucus antibody OD405nb at wk:
	2	7	9	11	2	7	9	11
Live theronts	160	240	480	480	0.011	0.008	0.039	0.085
i-antigen	120	640	640	480	0.018	0.004	0.027	0.049
14-kDa protein	0	20	0	0	0.032	0.007	0.017	0.004
BSA	0	0	0	0	0.011	0.007	0.012	0.011

^aDetermined by in vitro immobilization assay. The value is the median titer (n = 6).

^bDetermined by ELISA. The value is the median value of the optical density at 405n (OD₄₀₅) (n = 6).