Many vets are still failing to test for this condition properly, the parasite is very fragile, and if they collect a sample and send it away to a lab , there is often nothing left to see by the time a technician looks for it. If TF is a worry, it's often best for the vet to actually swab the cat's bottom and smear the swab on a slide and look under a microscope immediately for evidence of parasites. I don't know if it's true but I was told it should be examined preferably within 15 minutes.

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