Puppy and Kitten Vaccination Schedule: What to Know

A puppy vaccination schedule and a kitten vaccination schedule are among the very first health steps to plan as soon as a young animal joins your household. Following a consistent vaccination schedule for dogs and cats protects your pet during its most vulnerable stage, between weaning and adulthood, when natural immunity gradually fades. This article outlines the key points of that schedule and explains why every booster matters.

Why vaccinating a young animal matters so much

At birth, puppies and kittens receive temporary protection through antibodies passed on by their mother via colostrum. This so-called "maternal" immunity gradually wears off over the first weeks of life, leaving the animal exposed to diseases that can be serious, even fatal, especially in very young animals. Vaccination steps in at just the right time to close this window of vulnerability.

That's why vaccines aren't given all at once: they're administered as a series of spaced-out injections known as the primary vaccination course, followed by regular boosters throughout the animal's life.

Puppy vaccination schedule

In dogs, the primary vaccination course usually starts around two months of age and continues with several follow-up injections, spaced a few weeks apart, until the puppy's immune system is mature enough to respond fully to the vaccines.

• Major viral diseases: the primary course protects against the most serious and contagious diseases affecting young dogs, particularly those attacking the digestive, respiratory and nervous systems.
• Rabies: in many regions, this vaccine is mandatory or strongly recommended, especially if the animal will travel, come into contact with wildlife, or stay in a boarding facility.
• Annual boosters: once the primary course is complete, a booster shot is given every year to maintain effective long-term protection.

Kitten vaccination schedule

The kitten protocol follows a similar logic to that of puppies, with the primary vaccination course also starting around two months of age, followed by booster injections at regular intervals during the first months of life.

• Feline respiratory and digestive diseases: core vaccines protect against the most common viral infections in young cats, which are often responsible for cat flu and severe digestive disorders.
• Feline leukemia: recommended especially for kittens with outdoor access or those living in group settings, this vaccine targets a disease that severely weakens the immune system over time.
• Rabies: as with dogs, this is particularly advised for cats that go outdoors or travel.

Boosters: protection built over time

A vaccine is never a one-off action. The protection it provides fades over time, which is why regular boosters, usually annual, are needed to maintain sufficient antibody levels. Skipping a booster puts the animal at increased risk, even if it was properly vaccinated during the primary course.

A few good habits to keep in mind

• Keep a vaccination record up to date, essential for boarding, grooming, travel or future adoption.
• Stick to the recommended intervals between injections, without spacing them too close together or too far apart.
• Report any unusual tiredness, fever or local reaction after an injection.
• Adjust the vaccination protocol based on the animal's lifestyle (strictly indoors, outdoor access, contact with other animals).

Since every puppy and kitten is different depending on its environment, health status and level of exposure to risk, it's essential to have a personalized protocol set up by a professional. To do this, it's recommended to consult veterinarians for dogs or veterinarians for cats, who can tailor the vaccination schedule to each animal's specific needs.

For households considering welcoming a new pet, vaccination is also one of the key points to check during an adoption, to give the puppy or kitten a healthy start in life.

Should an indoor-only puppy or kitten still be vaccinated?

Yes, even an animal that never goes outside can be exposed to certain viruses carried by people, other animals or objects. Core vaccination is therefore still recommended, though the protocol can be adjusted based on the animal's actual level of risk.

Need a professional opinion? If in doubt or in an emergency, find a veterinarian near you on TunisieVet.