"Campylobacter hyointestinalis" sp. nov.: a new species of Campylobacter found in the intestines of pigs and other animals

Abstract

The name C. hyointestinalis sp. nov. is proposed for a Campylobacter species that was isolated from the intestines of pigs with proliferative enteritis. C. hyointestinalis is also found in the feces of cattle and was isolated from the intestine of a hamster. C. hyointestinalis is distinguished from previously described catalase-positive Campylobacter spp. by colony morphology, ability to produce H2S in triple sugar iron agar, ability to grow anaerobically in 0.1% trimethylamine N-oxide hydrochloride, resistance to nalidixic acid, susceptibility to cephalothin and metronidazole, and hydrogenase activity. Sixteen C. hyointestinalis strains were highly related (.gtoreq. 76%) by DNA-DNA hybridization (hydroxyapaptite method, 50.degree. and 65.degree. C). Other Campylobacter spp. were .ltoreq. 30% related to C. hyointestinalis. The type strain of C. hyointestinalis is designated 80-4577-4 (=ATCC 35217), and its DNA has a G + C [guanine-plus=cytosine] content of 36 mol%.