Standard fecal tests can miss up to half of whipworm cases and a large share of Giardia, and a single test only captures one moment in time. With daily walks, parks, litter trays and other animals, re-exposure never stops.
What you see often starts deeper down. A large share of a dog's or cat's natural defences lives in the gut, and what happens there shows up across the whole animal: skin, energy, sleep and digestion. That is why the scratching, the scooting and the 2 am pacing keep coming back after every cream and every chew.













