Almost all puppies are born with intestinal parasites, which are passed from mother to pup during pregnancy. Although kittens are not infected when they’re born, they can become infected through their mother’s milk. Puppies can also become infected while they’re nursing.
Puppies and kittens should both be dewormed every 2 weeks until 12 weeks of age, then monthly until 6 months of age. This is to address the various life cycle stages of the parasites that can emerge at different times.
