The three - in - one vaccaintion for panleukopenia / rhinotracheitis / calici virus given at eight, 12, and 16 weeks should offer long - term protective immunity for most kittens.
i don't know how it is in the usa but here breeders who are member of a catclub (and so can give out pedigrees with their kittens) are upheld to vaccinate the kittens they sell for panleukämia and Calici - and Rhinotracheitis virus (RCP) at least once.