Which parasites commonly cause chronic diarrhea?

Which parasites commonly cause chronic diarrhea?

• A. Giardia, whipworms, roundworms, hookworms
• B. Tapeworms and flukes only
• C. Heartworms and lice
• D. Coccidia only

Answer: (A)

Chronic diarrhea in animals is often driven by intestinal parasites that continuously irritate and inflame the gut, disrupting digestion and absorption. The combination of Giardia, whipworms, roundworms, and hookworms covers the major parasite groups that are classic culprits in producing long-lasting diarrhea. Giardia is a protozoan that causes malabsorption and greasy, frequent stools, sometimes intermittent. Whipworms live in the colon and produce a persistent, mucoid diarrhea. Roundworms and hookworms damage the intestinal lining and can cause ongoing diarrhea, with hookworms also contributing with blood loss. In comparison, tapeworms and flukes can cause GI signs but are not the most common causes of chronic diarrhea. Heartworms and lice are not intestinal parasites and don’t typically cause chronic diarrhea. Coccidia can cause diarrhea, especially in young animals, but the question asks for the group of parasites most commonly linked to chronic diarrhea overall, which is best represented by the set including Giardia, whipworms, roundworms, and hookworms.

Chronic diarrhea in animals is often driven by intestinal parasites that continuously irritate and inflame the gut, disrupting digestion and absorption. The combination of Giardia, whipworms, roundworms, and hookworms covers the major parasite groups that are classic culprits in producing long-lasting diarrhea. Giardia is a protozoan that causes malabsorption and greasy, frequent stools, sometimes intermittent. Whipworms live in the colon and produce a persistent, mucoid diarrhea. Roundworms and hookworms damage the intestinal lining and can cause ongoing diarrhea, with hookworms also contributing with blood loss.

In comparison, tapeworms and flukes can cause GI signs but are not the most common causes of chronic diarrhea. Heartworms and lice are not intestinal parasites and don’t typically cause chronic diarrhea. Coccidia can cause diarrhea, especially in young animals, but the question asks for the group of parasites most commonly linked to chronic diarrhea overall, which is best represented by the set including Giardia, whipworms, roundworms, and hookworms.