**Question:** Which of the following is false about campylobacter?

A. Campylobacter is a genus of Gram-negative bacteria that causes food poisoning.
B. Campylobacter is resistant to commonly used antibiotics like penicillin and amoxicillin.
C. Campylobacter infection is known as campylobacteriosis.
D. Campylobacter infection is typically transmitted through contaminated water.

**Correct Answer: D. Campylobacter infection is typically transmitted through contaminated water.**

**Core Concept:** Campylobacter is a genus of Gram-negative bacteria that mainly colonizes the gastrointestinal tract of animals and humans. It is a common cause of food poisoning, particularly due to the consumption of contaminated poultry and unpasteurized dairy products.

**Why the Correct Answer is Right:** Campylobacter species are known to cause campylobacteriosis, a zoonotic infection transmitted from animals to humans. The bacteria are commonly found in the intestines of birds, cattle, and sheep, and are often present in raw or undercooked poultry, unpasteurized milk, and dairy products. Ingestion of these contaminated foods leads to the onset of campylobacteriosis symptoms.

**Why Each Wrong Option is Incorrect:**

A. Campylobacter is indeed a cause of food poisoning, making this statement true.
B. While some Campylobacter species are resistant to certain antibiotics, not all are, and option B is not universally true.
C. Campylobacteriosis is the correct term for the infection caused by Campylobacter, making this statement true as well.
D. Campylobacter is not typically transmitted through contaminated water. The primary mode of transmission is ingestion of contaminated food products, not water.

**Clinical Pearl:** Understanding the mode of transmission for various pathogens is crucial in preventing infections. In the case of Campylobacter, educating individuals about safe food handling practices, particularly related to handling poultry and dairy products, is essential to reduce the risk of campylobacteriosis. Illustrating the importance of proper cooking methods for poultry and unpasteurized dairy products can help prevent foodborne illnesses like this one.