Campylobacter Enterocolitis

Campylobacter enterocolitis, commonly referred to as campylobacteriosis, is a bacterial infection primarily affecting the gastrointestinal tract. It is most often caused by Campylobacter jejuni and Campylobacter coli—gram-negative, spiral-shaped bacteria that inhabit the intestines of various animals, especially poultry. Transmission to humans typically occurs through the consumption of undercooked poultry, unpasteurized milk, contaminated water, or direct contact with infected animals.

Transmission

The primary mode of transmission is the fecal-oral route. Ingesting as few as 500 Campylobacter organisms can lead to infection. Common sources include:

Undercooked or raw poultry
Unpasteurized milk
Contaminated water
Fruits and vegetables washed with contaminated water
Direct contact with infected animals or their environments

Clinical Manifestations

Symptoms typically develop within 2 to 5 days post-exposure and may include:

Fever
Nausea and vomiting
Abdominal cramps
Watery or bloody diarrhea
Malaise

The illness usually resolves within a week; however, some individuals may experience prolonged symptoms or complications.

Diagnosis

Accurate diagnosis involves a combination of clinical assessment and laboratory investigations:

Patient History: Detailed dietary and exposure history
Stool Culture: Isolation of Campylobacter species
Stool Examination: Detection of white blood cells
Complete Blood Count (CBC): To assess for leukocytosis

Advanced diagnostic methods, such as polymerase chain reaction (PCR) assays, may offer increased sensitivity and specificity.

Treatment

Most cases are self-limiting and require only supportive care

Hydration: Oral rehydration solutions or intravenous fluids to prevent dehydration
Antipyretics: For fever management

Antibiotic therapy is reserved for severe cases, high-risk populations, or when symptoms persist beyond a week. Recommended antibiotics include:

Azithromycin: Preferred due to lower resistance rates
Erythromycin: An alternative option

Fluoroquinolones, such as ciprofloxacin, are generally avoided due to increasing resistance.

Special Considerations

Antibiotic treatment is particularly indicated for:

Severe or prolonged infections
Pregnant women nearing term
Immunocompromised individuals (e.g., HIV/AIDS, chemotherapy patients)
Food handlers and childcare workers

Complications

Potential complications include

Reactive Arthritis: Joint inflammation occurring after infection
Guillain-Barré Syndrome: A rare neurological disorder
Bacteremia: Especially in immunocompromised patients

Public Health and Reporting

Campylobacteriosis is a notifiable disease in many countries. Prompt reporting to public health authorities is essential for outbreak detection and control.