TABLE 2.

Characteristics of the Yersinia strains used in this study

Strain	Geographical region	Biovar or serotypea	Yr of isolation	Origin	Presence of mutation:
					yp3	yp48	yp35	hmsF
Y. pestis
6/69	Madagascar	Orientalis	1969	Human	+	+	+	+
501	Hamburg	Orientalis	1964		+	+	+	+
506	Vietnam	Orientalis	1955		+	+	+	+
509	Vietnam	Orientalis	1963	Human	+	+	+	+
510	Vietnam	Orientalis	1963		+	+	+	+
513	Vietnam	Orientalis	1964		+	+	+	+
518	Kurdistan	Medievalis	1947	Human	+	+	−	+
522	Senegal	Orientalis	1944	Human	+	+	+	+
523	Senegal	Orientalis	1944	Human	+	+	+	+
530	Madagascar	Orientalis	1939	Human	+	+	+	+
531	Vietnam	Orientalis	1955		+	+	+	+
532	Vietnam	Orientalis	1955		+	+	+	+
537	Kenya	Antiqua	1952		+	+	−	NDb
538	Kenya	Antiqua	1952		+	+	−	+
539	Kenya	Antiqua	1952		+	+	−	+
540	Kenya	Antiqua	1952		+	+	−	+
543	Rep. Congo	Antiqua	1953	Human	+	+	−	ND
544	Kenya	Antiqua		Human	+	+	−	+
554	Kenya	Antiqua		Human	+	+	−	+
562	Kurdistan	Medievalis	1947	Rat	+	+	−	+
564	Kurdistan	Medievalis	1948	Rat	+	+	−	+
Y. pseudotuberculosis
IP32637	France	I	1983	Human	−	−	−	+
IP32953	France	I	1990	Human	−	−	−	+
IP32941	France	I	1990	Human	−	−	−	+
IP32949	France	I	1990	Human	−	−	−	+
IP32934	France	II	1989	Monkey	−	−	−	+
IP32951	France	II	1990	Human	−	−	−	+
IP32945	Argentina	III	1990	Cattle	−	−	−	+
IP32937	Argentina	III	1989	Cattle	−	−	−	+
IP31830	Great Britan	IV	1969	Human	−	−	−	+
IP32817	Japan	V	1986		−	−	−	+

^aBiovar for Y. pestis strains, serotype for Y. pseudotuberculosis strains. 

^bND, not determined.