If you can't find anything else, and the collar is not actually causing any injuries to her, I would leave the collar on.
I am sure she does not like wearing the collar, but she will get more used to it as time goes on. She will still not like it, but she will probably come to accept it as...
My goodness, couldn't that person think ahead?
First he arranges matings for the cat, then before she even has time to have the kittens he gets rid of her? A cat is only pregnant for about two months, so he sure changed his mind quickly!
(Sorry, OP, I know this doesn't actually answer any of...
Based on a google search, that would probably work.
I'm finding pages that say bleach is a suitable disinfectant.
I'm also finding pages that say the virus can survive for a year or more on surfaces, so you definitely should disinfect the crate before using it.
After disinfecting, I would...
You could talk with the vet about how young it is safe to spay or neuter the kittens, and tell each person they can have a kitten only if the surgery happens (at their expense) before they get the kitten.
That way you wouldn't have to pay for spay/neuter on them all, but you could be sure it...