Leukaemia More Condition_symptoms Can Cats Go To Catteries Without The Leukaemia Vaccination?

Can cats go to catteries without the Leukaemia vaccination? - leukaemia more condition_symptoms

We were not going to get the vaccine for leukemia, our kittens, as they are indoor cats, but I fear that operations will not accept it when going on holiday! Is it too late to beating leukemia - are now 5 months and had all his other recordings.