Pathogenicity of a strain of Yersinia pseudotuberculosis isolated from a pig with porcine colitis syndrome.
A strain of Yersinia pseudotuberculosis (NCTC 12718), isolated from a seven-week-old pig suffering from an ulcerative typhlocolitis, was inoculated orally into 16 growing pigs in two separate experiments. At necropsy 10 days later, typhlocolitis was present in nine of the pigs, and it was accompanied by diarrhoea in four cases. In both the original case and in the experimental pigs, the typhlocolitis was characterised by microabscesses of the lamina propria, frequently involving ulceration or erosion of the surface epithelium. The organism was of serotype IIa, which has not been isolated previously from pigs in the United Kingdom. Y pseudotuberculosis may be the aetiological agent responsible in some cases of porcine colitis syndrome.
Agricultural and Food Research Council Institute for Animal Health, Compton, Newbury, Berkshire.
N A
NA
Neef
R J
RJ
Lysons
D000818:Animals; D003093:Colitis, Ulcerative / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D007420:Intestine, Large / Q000473:pathology; D008297:Male; D009077:Mucins / Q000032:analysis; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology* / Q000473:pathology; D013577:Syndrome; D015011:Yersinia pseudotuberculosis / Q000145:classification / Q000302:isolation & purification / Q000472:pathogenicity*; D015012:Yersinia pseudotuberculosis Infections / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*
D009077:Mucins