What is a Campylobacter infection?
Campylobacter infection, medically known as Campylobacteriosis, is one of the most common causes of bacterial diarrheal illness worldwide. Estimates from the Centers for Disease Control and Prevention (CDC) indicate that approximately 1.9 million people in the United States contract this infection annually, although many cases remain undiagnosed or unreported [3]. This bacterium is a microorganism that lives in the intestines and livers of many animals and can spread to humans, causing acute intestinal symptoms [3].
How is the infection transmitted and who is most at risk?
Campylobacter bacteria are usually transmitted through the consumption of contaminated food, specifically raw or undercooked poultry, which is the most common source of infection [2]. Alarmingly, a very small amount of this bacterium is enough to cause illness; for example, a single drop of raw chicken juice contains enough bacteria to infect a person [3]. Other transmission routes include consuming unpasteurized raw milk, drinking untreated water, or coming into contact with the feces of infected animals, including pets [2] [3].
Although the infection can affect anyone, certain groups are at higher risk of developing complications or severe disease, including children under five, adults aged 65 and older, people with weakened immune systems, international travelers, and individuals who work directly with animals [3].
Distinctive symptoms of the infection
Symptoms of the infection typically appear two to five days after exposure to the bacteria and usually last for about a week [2]. The most common symptoms include diarrhea (which may be bloody), severe abdominal cramps and pain, fever, a general feeling of fatigue, as well as nausea and vomiting [2]. In very rare cases, this infection may lead to more serious complications such as reactive arthritis or Guillain-Barré syndrome [2].
Diagnosis and medical management
The diagnosis of Campylobacter infection is based primarily on precise laboratory testing. If you are experiencing persistent symptoms, your healthcare provider may order a stool culture test (Arabic) to confirm the presence of the bacteria and determine its type [1] [3]. The test involves taking a stool sample and analyzing it in a laboratory, which is critical for guiding the treatment plan [1].
Regarding treatment, most people recover without the need for antibiotics, as the primary treatment focuses on replacing lost fluids to prevent dehydration [2] [3]. However, doctors may prescribe antibiotics for people with severe infections or those with weakened immune systems [2].
Prevention strategies
To reduce the risk of infection, food safety practices must be followed strictly:
- Cook poultry and meat thoroughly to ensure the bacteria are destroyed [2].
- Use separate cutting boards and knives for raw meat and those used for preparing ready-to-eat foods such as salads and fruits [2] [3].
- Be sure to wash hands regularly with soap and water, especially after handling raw meat or touching animals [3].
- Avoid drinking unpasteurized milk or untreated water [3].
Medical references
Cite this answer
ClinicsJo Editorial Team. What is a Campylobacter infection? (Sep 13, 2026).
https://clinicsjo.com/en/faq/ma-hi-adwa-al-campylobacter#answerRead the text version with referencesHow to use medical information