It is very important to return for each vaccination on time at the recommended intervals to properly protect the pet. It is also important to "isolate" the new pet as much as possible from other animals until the entire vaccination series is completed to prevent possible disease resulting from exposure to a disease before sufficient immunity has developed.

A Series Of Immunizations Is Required For A Young Pet To Develop Its Immunity. The immune system of newborn puppies and kittens is immature.