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Clostridium difficile

Edexcel A-level BiologyBacteria and DiseaseLesson 29 of 30

Clostridium difficile (often called C. difficile or C. diff) is a Gram-positive, rod-shaped, anaerobic bacterium that forms spores. It lives in the large intestine of a small proportion of healthy people without causing harm, because it is kept in check by competition from the huge numbers of other, harmless bacteria in the gut.

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Key terms in this lesson

colitis
Inflammation of the lining of the colon (large intestine).

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