Vaccination is one of the most effective preventive measures in veterinary medicine. But the schedule is not a single card that fits every pet. Age, maternal antibodies, lifestyle and local disease risk all matter.
Why timing matters
Young animals carry maternal antibodies from their mother's first milk. These antibodies protect them early in life, but they can also interfere with a vaccine response. That is why puppies and kittens receive a series of doses rather than a single injection. The aim is to bridge the gap until their own immune system can respond reliably.
Core vaccines
Core vaccines are recommended for most dogs and cats because they protect against widespread, serious disease. For dogs, this typically includes canine distemper, adenovirus, parvovirus and rabies where required. For cats, core protection usually covers feline herpesvirus, calicivirus, panleukopenia and rabies where required. Your veterinarian will confirm the local requirements for your country.
Lifestyle vaccines
Non-core vaccines depend on risk. A dog who hikes in tick-heavy areas, visits boarding kennels or lives near wildlife may need different protection from a city cat who never goes outside. Boarding facilities and airlines may also have specific requirements. This is a conversation, not an automatic add-on.
After the series
Once the initial series is complete, booster intervals depend on the vaccine, local guidance and your pet's risk. Do not assume every vaccine needs an annual booster, and do not assume none do. Keep a clear record with product names and dates.
This article is general information and does not replace a veterinary examination. If your pet is unwell or you are worried, contact our team or a local veterinarian.