title: Campylobacter sputorum subsp mucosalis and Campylobacter hyointestinalis infections in the intestine of gnotobiotic pigs.
abstract: At 4 days of age, 7 gnotobiotic pigs were orally inoculated with broth cultures of both Campylobacter sputorum subsp mucosalis (CSM) and Campylobacter hyointestinalis (CH). One pig was killed and evaluated each week for 7 weeks. Forty-eight hours after inoculation, CH and CSM were recovered from the feces of the pigs; thereafter, only CH was recovered. Organisms morphologically typical of Campylobacter sp were observed on the mucosal surface and on the crypt epithelial cells of the ileum, cecum, and colon from post-inoculation weeks (PIW) 2 through 7. Bacteria were clustered around the surface opening of goblet cells in pigs at PIW 6 and 7. Crypt epithelial cell proliferation and intracellular bacteria were not seen, except in 1 pig (killed at PIW 7) in which intracellular bacteria were seen only in the cecum. Therefore, CSM and CH did not induce porcine proliferative enteritis in gnotobiotic pigs.
mesh_terms: D000818:Animals; D002169:Campylobacter Infections / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D007410:Intestinal Diseases / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D007421:Intestine, Small / Q000382:microbiology / Q000473:pathology; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology / Q000473:pathology*