How Often Should a Pet Be Vaccinated?

If you’ve ever stared at a vet bill and wondered why your dog or cat needs a series of shots, you’re not alone. The short answer is: pets need vaccines at specific ages, then regular boosters to stay safe. Below we break down the timing so you can plan ahead and avoid missed shots.

Core Vaccines and Their Timing

Core vaccines protect against the most common, serious diseases. For puppies and kittens, the first round usually starts at 6‑8 weeks old. From there, repeat every 2‑4 weeks until they’re about 16 weeks old. This gives the immune system time to build strong defenses.

Typical core shots for dogs include:

• Distemper
• Parvovirus
• Canine adenovirus (hepatitis)
• Rabies (required by law in most places)

For cats, the core list covers:

• Feline panleukopenia (distemper)
• Feline calicivirus
• Feline herpesvirus (rhinotracheitis)
• Rabies

After the initial series, most vets give a booster at one year of age. That first adult boost locks in long‑term protection.

Boosters & Adult Pet Care

Adult pets don’t need vaccines every year—most core shots are good for three years, though rabies often stays on a yearly schedule. Your vet will suggest a personalized plan based on your pet’s lifestyle.

If your dog loves the dog park, swims in lakes, or travels abroad, you might add non‑core vaccines like Bordetella (kennel cough) or leptospirosis. Cats that go outdoors may need Felv (feline leukemia) and FIV (feline immunodeficiency) shots.

Here’s a quick cheat sheet:

• Core boosters: every 3 years after the 1‑year shot.
• Rabies: yearly or every 3 years, depending on local law.
• Non‑core vaccines: as needed, usually every 1‑3 years.

Never skip a booster because you think your pet “won’t get sick.” Vaccines protect not only your pet but also other animals in the community.

When you schedule a vet visit, ask for a vaccination record. Many clinics provide a handy card or digital log. Keep it in your pet’s folder so you can see at a glance when the next dose is due.

In short, think of vaccines as a routine like feeding or walks. Follow the initial puppy/kitten series, get the 1‑year booster, then set a calendar for every three years (or yearly for rabies). Add extra shots only if your pet’s lifestyle calls for them.

Sticking to this schedule keeps your furry friend healthy, saves you money on emergency vet trips, and makes sure you’re following local regulations. Got a question about a specific vaccine? Your vet is the best source—don’t hesitate to ask during your next visit.