TABLE 3.

Salivary IgA titers from animals immunized either i.g. or i.n. and challenged intraconjunctivally

Strain	Titers (±SD) after type immunization
	i.g.		i.n.
	Total salivary IgA	Anti-LPS IgA/total IgA	Total salivary IgA	Anti-LPS IgA/total IgA
M90T	11,440 ± 4,894	5.41	3,001 ± 827	87.51
M90T aroC::Tn10	16,256 ± 1,316	0	3,199 ± 1,216	68.32
M90TΔpurE aroC::Tn10	28,217 ± 3,831	1.71	7,265 ± 1,126	30.28
E. coli 395.1	2,363 ± 1,033	0	2,474 ± 897	0