Campylobacter spp. are associated most frequently with cases of

• A. Osteomyelitis
• B. Gastroenteritis
• C. Endocarditis
• D. Appendicitis

Answer: (B)

Campylobacter spp. are most famously linked to gastroenteritis because these bacteria invade and inflame the intestinal lining after ingestion of contaminated food or water, especially undercooked poultry and contaminated dairy or produce. The classic illness is acute diarrhea with abdominal cramps (often with fever and sometimes blood in the stool), which is the most common clinical presentation associated with Campylobacter infection. This makes gastroenteritis the best answer.

Osteomyelitis isn’t the typical outcome for Campylobacter; it’s more commonly associated with other pathogens like Staphylococcus aureus or certain Salmonella strains in specific settings. Endocarditis from Campylobacter is rare and usually occurs in patients with underlying heart conditions or prosthetic devices. Appendicitis isn’t caused by Campylobacter, though intestinal inflammation can occasionally mimic appendicitis. The hallmark association remains enteric illness.