Worms

Whipworms have a thick head end and a whip-like tail. In the UK, whipworm only affects dogs, and lives in their large intestine.
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Roundworms are large white worms, with cylindrical bodies.
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Angiostrongylus vasorum adults are slender worms of around 2.5cm in length but they are never seen as they remain inside the infected dog or fox.
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Adult hookworms range in length from 5mm to 16mm.
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