Rectal stricture in pigs is associated with infection by which organism?

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Multiple Choice

Rectal stricture in pigs is associated with infection by which organism?

Explanation:
Rectal stricture results from chronic inflammation of the rectal mucosa (proctitis) that heals with scar tissue, narrowing the lumen. Salmonella typhimurium is the organism most classically linked to this complication in pigs because its infection can cause proctitis and severe inflammation in the distal gut, leading to fibrosis and narrowing of the rectum over time. The other organisms listed—while they can cause enteric disease—are not as characteristically associated with the development of rectal stricture in pigs.

Rectal stricture results from chronic inflammation of the rectal mucosa (proctitis) that heals with scar tissue, narrowing the lumen. Salmonella typhimurium is the organism most classically linked to this complication in pigs because its infection can cause proctitis and severe inflammation in the distal gut, leading to fibrosis and narrowing of the rectum over time. The other organisms listed—while they can cause enteric disease—are not as characteristically associated with the development of rectal stricture in pigs.

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