COGs	Clusters of orthologous genes;
GIT	Gastrointestinal tract;
WHO	World Health Organization;
CDC	Centers for Disease Control and Prevention;
PFGE	Pulsed-field gel electrophoresis;
RAST	Rapid Annotation using Subsystem Technology;
ORFs	Open reading frames;
SNP	Single nucleotide polymorphism;
BRIG	Blast Ring Image Generator;
NCBI	National Center for Biotechnology Information;
SPIs	Salmonella pathogenicity islands;
ANI	Average nucleotide identity;
LPS	Lipopolysaccharide;
OMPs	Outer membrane proteins;
PAIs	Pathogenicity-associated islands