Jump to Section
- Why Vaccines Matter
- Core Vaccines
- Non-Core Vaccines
- Puppy Vaccination Schedule
- Adult Dog Vaccination Schedule
- Vaccine Side Effects
- FAQ
Why Vaccines Matter

Vaccinations are a crucial part of your dog's healthcare. They protect against potentially fatal diseases and help prevent the spread of contagious illnesses. Regular vaccinations ensure your dog stays healthy and can safely interact with other animals.
Core Vaccines
Core vaccines are recommended for all dogs, regardless of lifestyle or location, due to the severity and widespread nature of the diseases they prevent:
- Rabies: A fatal viral disease that affects the nervous system. Vaccination is often required by law.
- Canine Distemper: A contagious and serious disease caused by a virus that attacks the respiratory, gastrointestinal, and nervous systems.
- Canine Parvovirus: A highly contagious virus that causes severe gastrointestinal illness in puppies and unvaccinated dogs.
- Canine Adenovirus (Hepatitis): Causes infectious canine hepatitis, affecting the liver and other organs.
Non-Core Vaccines
Non-core vaccines are recommended based on your dog's exposure risk, lifestyle, and geographic location:
- Bordetella bronchiseptica: Causes kennel cough; recommended for dogs that are boarded, groomed, or attend dog parks.
- Leptospirosis: A bacterial infection that can affect both dogs and humans; recommended in areas where the disease is prevalent.
- Lyme Disease: Transmitted by ticks; recommended for dogs in areas where ticks are common.
- Canine Influenza: A contagious respiratory disease; recommended for dogs in communal settings.
- Parainfluenza: Part of the kennel cough complex; often included in combination vaccines.
Puppy Vaccination Schedule

Puppies require a series of vaccinations to build immunity:
- 6-8 weeks: First combination vaccine (Distemper, Parvovirus, Adenovirus, Parainfluenza)
- 10-12 weeks: Second combination vaccine
- 14-16 weeks: Third combination vaccine and Rabies vaccine
- 12-16 months: Booster for all vaccines
Note: The exact schedule may vary based on the vaccine type and your veterinarian's recommendations.
Adult Dog Vaccination Schedule
After the initial puppy series and first-year boosters, adult dogs require regular vaccinations to maintain immunity:
- Core vaccines: Every 1-3 years, depending on the vaccine and local regulations
- Non-core vaccines: Annually or as recommended based on risk factors
Vaccine Side Effects

Most dogs experience no side effects from vaccinations. However, some may have mild reactions:
- Temporary soreness or swelling at the injection site
- Mild fever or lethargy
- Decreased appetite
Serious reactions are rare but require immediate veterinary attention. Always monitor your dog after vaccinations and consult your vet if you notice any concerning symptoms.
FAQ
Are vaccinations mandatory for dogs?
Rabies vaccination is legally required in many areas. Other vaccines may not be mandated but are strongly recommended for your dog's health.
Can my dog skip non-core vaccines?
Non-core vaccines are based on your dog's lifestyle and exposure risk. Discuss with your vet to determine which are necessary.
What if my dog misses a scheduled vaccine?
Contact your veterinarian to reschedule as soon as possible. Delays can leave your dog vulnerable to diseases.
Do indoor dogs need vaccinations?
Yes. Even indoor dogs can be exposed to diseases through contact with humans, other animals, or contaminated objects.
Can vaccines cause illness in dogs?
Vaccines are designed to prevent illness. Side effects are typically mild and temporary. Serious adverse reactions are rare.
Share:
Which Dog Breed Is Right For You? A Match Guide
Why Is My Dog Scooting?