TABLE 1.

Properties of tested S. enterica strains

Strain	Serovar	Source or relevant property	Source or reference
31922	Agona	Stool sample	J. Kapera
2094	Anatum	Stool sample	J. Kaper
98E01362SH2	Cubana	Alfalfa	S. Josephb
32196	Infantalis	Gelfelte fish	J. Kaper
Newport	Newport	Sardine	S. Joseph
31625	Senftenberg	Stool sample	J. Kaper
HO558	Stanley	Stool sample	S. Joseph
98E013E2SH1	Tennessee	Alfalfa	S. Joseph
S4344	Typhimurium	Wild-type genotype	C. Leec
339	Typhimurium	hilA339::Kan	C. Lee
SD11	Typhimurium	SPI1 deletion	28
RM69	Typhimurium	SPI1 deletion	28
EE656	Typhimurium	prgH020::Tn5lacZY	28

^aDepartment of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore.

^bDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park.

^cDepartment of Microbiology and Molecular Genetics, Harvard Medical School, Boston, Mass.