TABLE 1.

Comparison of kinetics of elimination of Y. enterocolitica ΔyopH and WT strains

Sample	No. of days	% eliminationa		P value	Ratio of elimination of ΔyopH strain to WT strain
		Y. enterocolitica WT	Y. enterocolitica ΔyopH
PP	3	40.1 ± 1.7	64.2 ± 7.9	<0.05	1.6
	7	45.5 ± 5.5	79.9 ± 5	<0.01	1.8
	21	63.3 ± 5.5	100	<0.001	1.6
Feces	3	44.4 ± 2.3	60.3 ± 2.1	<0.001	1.4
	7	48.8 ± 2.8	57 ± 2.2	<0.01	1.2
	21	55.6 ± 0.3	69.3 ± 1.9	<0.01	1.3

^aRatio of the bacterial load at the final time point to the load at the initial time point.