All are true about campylobacter jejuni except.
**Campylobacter jejuni**
**Core Concept**
Campylobacter jejuni is a gram-negative, thermophilic, spiral-shaped bacterium that is a leading cause of bacterial gastroenteritis worldwide. It is commonly found in poultry, livestock, and contaminated water sources.
**Why the Correct Answer is Right**
Campylobacter jejuni invades the intestinal mucosa, causing inflammation and diarrhea. The bacterium produces a flagellum that allows it to move and colonize the small intestine, where it adheres to the mucosal cells using specific adhesins. The pathogenesis of C. jejuni involves the production of virulence factors such as cytotoxins and lipopolysaccharides, which contribute to the inflammatory response and tissue damage.
**Why Each Wrong Option is Incorrect**
* **Option A:** Not enough information provided to determine if this statement is true or false about Campylobacter jejuni.
* **Option B:** Campylobacter jejuni is indeed a leading cause of Guillain-Barré syndrome, a rare autoimmune disorder that can occur after a bacterial infection. However, this option may be incomplete or misleading without further context.
* **Option C:** Campylobacter jejuni is a common cause of food poisoning, particularly in developing countries where access to clean water and sanitation is limited. It is often associated with the consumption of undercooked or raw poultry products.
**Clinical Pearl / High-Yield Fact**
Campylobacter jejuni is a leading cause of Guillain-Barré syndrome, a rare autoimmune disorder that can occur after a bacterial infection. This association is thought to be related to the production of specific lipopolysaccharides by the bacterium, which can trigger an autoimmune response in susceptible individuals.
**Correct Answer:** A.