Campylobacters in man and the environment in Hull and East Yorkshire

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Abstract
SUMMARY: Campylobacter organisms isolated from water samples taken weekly from ponds and land-drains in the City of Hull were compared with isolates from humans. Of 314 campylobacter organisms isolated from patients, 237 (75.5%) of the strains were identified as typicalCampylobacter jejuni, whilst of 125 identified strains isolated from the water samples, 85 (68%) resembledC. jejuniin most respects but were hippurate hydrolysis negative by the Hwang and Ederer method. The ponds and land drains in the city were therefore not a source of campylobacteriosis in the people living near these water courses. The atypicalC. jejunistrains isolated from the environment may be mistaken for theC. jejunistrains which cause human infection. It is therefore essential that such strains are fully identified before attributing human and animal infections to their ingestion.