Depends what virus and how much immunity they had to it x

I would keep them away from any other cats though to be safe, if it's herpes it wouldn't be good to let cats anywhere near them and a disinfecting regime should be looked at x

mums can turn on kittens for various reasons, usually it is due to illness but can be hormones also and a variety of other factors, like her maybe wanting to raise kittens on her own and not liking a human's involvement x

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