Campylobacteriosis

At a Glance

Campylobacteriosis is a foodborne infectious disease caused by Campylobacter.

Typical manifestations include diarrhea, abdominal cramps or pain, fever, fatigue, nausea, and vomiting; diarrhea may be bloody.

How the disease works

The main risk factors include contact with contaminated or undercooked poultry, contaminated water or raw milk, and feces from infected animals.

As the bacteria colonize the intestinal tract and cause inflammation, gastrointestinal symptoms such as diarrhea and abdominal pain may occur.

Variations in presentation among individuals

The presence and severity of symptoms vary depending on the exposure dose and host status, and immunocompromised individuals may have a higher risk of severe infection.

The broad framework of diagnosis and management

Symptoms usually begin 2–5 days after infection and last for about 1 week; some infected individuals may be asymptomatic, and rarely, reactive arthritis or Guillain-Barré syndrome may occur.

Diagnosis is made by evaluating symptoms and exposure history together and utilizing stool tests.

Current status of treatment

Stool test results must be interpreted by considering the testing method, timing of specimen collection, recent antimicrobial use, and clinical course together; severity or complications cannot be determined by a single result alone.

The focus of management is to replenish fluids to prevent dehydration caused by diarrhea and to monitor the clinical course and severe signs.

Most cases improve without specific treatment, but antibiotics may be considered in cases of severe infection or immunocompromised states.

How to read clinical trials

The registered NCT00859716 study is recorded as a vaccine challenge trial, but trial registration alone cannot be used to determine efficacy, safety, approval, or whether it constitutes standard care.

Points to verify during clinical consultations

In clinical practice, it is important to confirm the time of symptom onset, exposure to food/water/animals, presence of bloody stools and dehydration, immunocompromised status, current medications, and recent antibiotic use.