Have used these several times now and one time results were confirmed later with a test at the vet. At this cost, so much money is saved at the vet and sometimes it's the weekend and no vet is open and you just have to know what you are dealing with in a new kitten with diarrhea and these can just be on hand for when needed. If used according to instructions have had very little problems using these tests.
I do rescue and these are super helpful. Anytime a new kitty acts off we double-check to be safe since FPV raised its ugly head in TN last year.
We, unfortunately, came into contact with FPV from a spay and neuter shelter. We've been losing a lot of kittens, so I decided to get this kit to easily monitor and test my other quarantined cats. Waffles has a positive result but newly vaccinated, with no symptoms. The other 2 were negative, with no symptoms. They do work! Follow instructions to a tee. We used both rectal and fecal methods, and both worked.
We donated these testing kits to a cat rescue that was helping with a hoarding situation. They requested these kits and we helped the rescue by donating these kits.