Why Vaccines Matter
Vaccination is one of the most cost-effective and impactful things you can do for your pet's long-term health. By training the immune system to recognize and fight specific pathogens, vaccines prevent serious — often fatal — diseases that were once common killers of domestic animals. Beyond protecting individual pets, widespread vaccination helps maintain community-level immunity that protects vulnerable animals who cannot be vaccinated.
Core vs. Non-Core Vaccines
Core vaccines are recommended for virtually all pets, regardless of lifestyle, because the diseases they prevent are severe, widespread, or transmissible to humans. Non-core vaccines are given based on individual risk factors — where you live, your pet's lifestyle, and exposure risk.
Dog Vaccination Schedule
| Vaccine | Type | Puppy Schedule | Adult Booster |
|---|---|---|---|
| Distemper / Parvovirus / Adenovirus (DAP/DHPP) | Core | 6–8 wks, then every 3–4 wks until 16 wks | 1 yr after puppy series, then every 3 yrs |
| Rabies | Core | 12–16 weeks | 1 yr, then every 1–3 yrs (per local law) |
| Bordetella (Kennel Cough) | Non-core | As early as 8 weeks | Every 6–12 months (if boarding/dog parks) |
| Leptospirosis | Non-core | Two doses, 2–4 weeks apart | Annually (high-risk areas) |
| Lyme Disease | Non-core | Two doses, 2–4 weeks apart | Annually (tick-prevalent regions) |
| Canine Influenza | Non-core | Two doses, 2–4 weeks apart | Annually (high-exposure dogs) |
Cat Vaccination Schedule
| Vaccine | Type | Kitten Schedule | Adult Booster |
|---|---|---|---|
| FVRCP (Herpesvirus, Calicivirus, Panleukopenia) | Core | 6–8 wks, every 3–4 wks until 16 wks | 1 yr after series, then every 3 yrs |
| Rabies | Core | 12–16 weeks | 1 yr, then every 1–3 yrs |
| FeLV (Feline Leukemia Virus) | Non-core (core for outdoor cats) | 8–12 weeks, booster 3–4 weeks later | Annually for at-risk cats |
| Chlamydia felis | Non-core | 9 weeks and older | Annually if indicated |
Important Considerations
Maternal Antibodies and Puppy/Kitten Timing
Young animals receive passive immunity through their mother's milk. This protective but temporary immunity can interfere with vaccine effectiveness, which is why puppies and kittens receive a series of vaccines — to ensure one dose catches the immune system at the right window, after maternal antibodies have waned.
Vaccine Reactions
Most pets tolerate vaccines well. Mild soreness at the injection site or slight lethargy for 24 hours is normal. Seek immediate veterinary care if your pet experiences facial swelling, vomiting, difficulty breathing, or collapse — these are signs of a rare but serious allergic reaction.
Titer Testing
Titer tests measure a pet's existing immunity through a blood test. Some owners use titers to determine whether booster vaccines are truly needed rather than vaccinating on a fixed schedule. Discuss this option with your vet, particularly for older pets or those with health conditions.
Keeping Records
- Keep a vaccination record booklet or use your vet's digital portal.
- Many boarding facilities, groomers, and dog parks require proof of current vaccines.
- Rabies vaccination certificates are often required by law and may be needed for travel.
Always work with your veterinarian to build a vaccination plan tailored to your pet's age, health, lifestyle, and geographic location. There is no one-size-fits-all schedule, and a good vet will help you make the most informed, personalized choices.