Table 3. Number of Positive Cells per Square Millimeter after Immunostaining with Various Antibodies in the Villous Lamina Propria of the Duodenum.

Antibodies	Vaccinated Dogs	Dogs Receiving only Salmonella	Control
CD3	591*	1,414	1,245
Lambda (λ)	1,912##	1,177	1,591
Kappa (κ)	339	297	324
IgA	1,460	1,048	1,395
IgM	189	193	217
λ+κ/CD3	3.81#	1.04	3.71
IgA+IgM/CD3	2.79 ## *	0.88	1.45

The average of Lambda positive cells was 1,594 per mm² and of Kappa positive cells 322 per mm²; thus the λ/κ ratio is 5. The average of IgA positive cells was 1,335 per mm² and of IgM positive cells 202 per mm², thus the IgA/IgM ratio is 6.6.

*: P<0.05, Dunnett multiple comparisons test.

^## P<0.01, Dunnett multiple comparisons test.

^# P<0.05, Dunnett multiple comparisons test.

^# P-value as compared with dogs who received only Salmonella.

**: P-value as compared with dogs from control groups.