I have a kitten who developed cat flu shortly after we had got her. The vet said she must have caught it from her mother, although when I saw the mum with her kittens she didn't look unwell.

Can the mum pass on cat flu to her kittens if she had cat flu in the past but not showing any symptoms now? I've been told that if a cat has had cat flu it can come back during times of stress (and pregnancy = stress imho!), so does that mean the cat should not be used for breeding?