TABLE 1.

Y. pseudotuberculosis strains used in the present study

Strain	Relevant genotype	Reference
YPIII	Plasmid negative	7
YPIII(pIB102)	Wild type	8
YPIII(100)	Plasmid-negative invA	49
YPIII(pIB29)	yopH	9
YPIII(pIB522)	yopE	46
MYM [YPIII(pIB29MEKA)]	yopHMEKypkA	25
MYMpyopH	pyopH	39
MYMpyopHC/A	pyopHC/A	39