@DebraDownSouth:
I think that is the point… not only is the test a marker test, but there seems to be quite a bit of errors. I would probably continue to strip test even if they developed a new test just because I am now so leery of messed up results.
I don't consider the number of errors that have occurred to be "quite a bit" when one considers how many were actually tested.
Unfortunately, when anything involves humans, there will always be the possibility of human error. That should be a given.
In the Spring of 2009, when we found out that "Funny" CH Khani's You Can Make History was spilling sugar, we were dumbfounded. I posted everywhere about her situation. She was tested again [this time a swab, as her original test was blood] and again, she tested as a carrier.
At that time, Jon told me that there was one other dog that was in this situation… tested more than once as a carrier, yet spilling sugar.
When Funny passed, a sample of her kidney was sent to UM for their research.
At that time, we found out the importance of testing dogs that could have tested as a carrier... meaning those that came from a breeding that could produce an affected... as in Funny... she was from a Carrier x Carrier breeding.
No matter the errors, this test is a god-send and I will take those errors with the good that has come of the test. The number of Fanconi Affecteds being produced by responsible breeders has dwindled to next to nothing.
Compared to the past... it isn't the same as playing Russian Roulette anymore.