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Campylobacter enteritis associated with unpasteurized milk.

M J Blaser, J Cravens, B W Powers

The American Journal of Medicine

|October 1, 1979

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Campylobacter fetus subspecies jejuni is a newly identified human enteric pathogen. This study details methods for its isolation from stool and a serologic test, reporting an outbreak linked to unpasteurized milk.

Area of Science:

Microbiology
Infectious Diseases
Foodborne Pathogens

Background:

Campylobacter fetus subspecies jejuni is increasingly recognized as a significant human enteric pathogen.
The fastidious nature of C. fetus ss. jejuni presents challenges for laboratory isolation and diagnosis.
Developing effective methods for recovery and serologic detection is crucial for understanding its epidemiology.

Observation:

An outbreak of gastrointestinal illness affected three family members simultaneously.
Symptoms included fever, severe abdominal cramps, and diarrhea.
All affected individuals consumed unpasteurized milk from a single infected cow.

Findings:

Campylobacter fetus subspecies jejuni was successfully isolated from stool specimens of all three affected family members.

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A significant fourfold increase in serum immunoglobulin G (IgG) titers to C. fetus ss. jejuni was observed in each patient, indicating infection.

The source of the outbreak was identified as unpasteurized milk contaminated with C. fetus ss. jejuni from an infected cow.

Implications:

This study highlights the importance of considering Campylobacter fetus subspecies jejuni in cases of bacterial gastroenteritis.
The described methods facilitate improved laboratory diagnosis and identification of this pathogen.
The findings underscore the public health risk associated with consuming unpasteurized dairy products due to potential contamination with enteric pathogens.