RE:Vaccinating kittens of unknown status against FeLV?

[Malone]

I was told I didn't need to test anymore by my vet that Sox was healthy, and
he was vaccinated. I wish I had waited until he was a few weeks older,
tested him, and then I would have known. He died at 9 months, and he had
been vaccinated. His mother had FeLV, but at the time I didn't know. She was
a feral that wasn't caught until the month after he died. All his litter
mates died as well. I really still know nothing about this virus other than
the fact it is heart wrenching to see a beloved pet die. I will always test.
Now my baby boy, who has been vaccinated, has contracted the virus. He is
healthy, and I try to learn from people here how to keep him healthy.