C. jejuni is a gram-negative bacterium that causes severe gastroenteritis. Due to C. jejuni’s ability to produce lipoligosaccharides, the bacteria are able to invade intestinal epithelial cells. Beyond the gut wall, C. jejuni has been implicated in disorders such as arthritis and Guillain-Barré syndrome. The severity of these disorders makes C. jejuni an important environmental trigger to assess while working up certain autoimmune patients.
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