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Species/Subspecies: Campylobacter hyointestinalis subsp. lawsonii
Etymology: Genus name: a curved rod.
Species epithet: from a hog's intestine.
Subspecies epithet: in honor of the Brittish bacteriologist Gordon H.K. Lawson.
Significance:  [Of minor importance]   
Type Strain: CHY 5 = CCUG 34538 = NCTC 12901.
Macromorphology (smell): Small circular and convex colonies (1.5-2.0 mm in diameter) after 48 h. Many strains give hemolysis on blld agar.
Micromorphology: Loosely spiraled and bent rods (0.2 x 1.42 µm.
Gram +/Gram -:G -
Metabolism: Microaerophilic
Other Enzymes: Hippuricase - (hippurat -), urease -
Biochemical Tests: Hydrogen sulfide (H2S) (+)
Fermentation of carbohydrates: Campylobacter spp. can neither ferment nor oxidize carbohydrates.
Spec. Char.:
Hosts: Pig?
Reservoir: Pig
Disease (Swedish):Bakterien har isolerats från magen på gris, men patogenicitet har ej kunnat visas.
Disease (English):The bacterium has been isolated from the stomach of pigs, but pathogenicity has not been shown.
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AF097685 CHY 5T 1419  

 Campylobacter hyointestinalis
About 25 species have been described within in the genus Campylobacter and some of these are further divided into subspecies. This genus is closely related to the following genera: Sulfurospirillum, Arcobacter and Helicobacter. C. hyointestinalis is closely related to C. fetus and C. coli.


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Swedish University of Agricultural Sciences