Enteropathogenic salmonellae cause inflammation and necrosis of the small and large intestines, resulting in diarrhea
Most often observed in pigs from weaning up to about 5 months old however, it can occur at any age
Affected pigs are commonly febrile, with reduced feed intake, and have liquid yellow feces that may contain shreds of necrotic debris
Diarrhea in individual pigs usually lasts 3-7 days, and it may recur for multiple bouts
Pigs infected with enteropathogenic salmonellae (S. choleraesuis, S. typhimurium) have an inflamed, segmentally thickened distal small intestine and colon, usually with necrotic debris on the mucosal surface
Mesenteric lymph nodes are variably enlarged, edematous, and reddened
Mucosal ulceration may or may not be evident, and a small amount of hemorrhage may be observed in acute cases