Description of Campylobacter upsaliensis sp. nov. Previously Known as the CNW Group

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Summary

A new species, with the name Campylobacter upsaliensis, is proposed for catalase negative or weakly reacting campylobacters, which are thermotolerant, hippurate negative, nitrate positive, nitrite negative, unable to produce H2S in triple sugar iron agar and iron metabisulphite medium, intolerant to 1.5% NaCl and susceptible to nalidixic acid. G+C content of DNA is 35–36 mol%. The description is based on 37 human and canine C. upsaliensis strains identified by DNA-DNA hybridization (quantitative bacterial dot method). Campylobacter upsaliensis has been found in the feces of humans, dogs and cats with or without, signs of enteritis. It has also been found in blood from diseased humans with different clinical pictures including enteritis. The type strain is designated C231T (= NCTC 11541T) and the G+C content of its DNA is 35 mol%.

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    Dr. Karin Sandstedt, Department of Clinical Bacteriology, F82, Huddinge Sjukhus, S-141 86 Huddinge, Sweden

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