Do you think 2 dogs could be infected the same way
within 2 weeks of each other.?
I want another animal soooo bad but afraid there is
something wrong in my yard.]
like Hazelrun said, I've heard of nose cancer usually being quite slow to develop. Perhaps they were exposed to something, in the yard or elsewhere?
It might not be bad with something like that, if you can't pinpoint what it is, to wait awhile to make sure any causes have had a chance to clear. (I had a small animal once that infected my other small animals, despite all my efforts I couldn't save them. Even though the vet told me I was fine to get another, I found out after losing another pet, that I had to wait 6 months for my house to be clear. It worked.)
That must have been so hard for you to go through. I hope things work out if you decide to get another fur-kid.