🐾Cavalier King Charles Spaniel Vaccine Schedule (2026)
A complete 2026 vaccine, deworming and heartworm schedule for the Cavalier King Charles Spaniel, a small-sized breed weighing around 13-18 lbs and living about 9-14 years. Gentle, social Cavaliers visiting groomers and parks usually need Bordetella.
Size
Small
Adult weight
13-18 lbs
Lifespan
9-14 yrs
Cavalier King Charles Spaniel health risks and vaccine implications
Breed-specific health concerns
Mitral Valve Disease (MVD) affects nearly all Cavaliers by age 10 and is the leading cause of death. Syringomyelia (SM) is a severe neurological condition caused by skull malformation, affecting up to 70% of the breed to some degree and causing extreme pain. Episodic Falling Syndrome and dry eye are also breed-specific issues.
Recommended vaccines
Core DHPP + rabies. Bordetella for social dogs. Discuss whether the stress of non-core vaccines outweighs benefit given breed's health burden.
Dosage and administration
Small breed dose. Keep vet visits calm and short. Avoid handling that pressures the neck or head given syringomyelia risk. Discuss with vet whether the annual exam can be a low-stress consultation.
Cavalier King Charles Spaniel puppy vaccine schedule
The core puppy series is the same for every breed. Here is the standard 2026 timeline a Cavalier King Charles Spaniel puppy follows, per AAHA guidelines.
| Vaccine | Type | Typical age |
|---|---|---|
| DHPP (1st dose) | Core | 7 weeks |
| DHPP (2nd dose) | Core | 11 weeks |
| DHPP (3rd dose) | Core | 15 weeks |
| Rabies (1st dose) | Core | 14 weeks |
| Bordetella (kennel cough) | Non-core | 8 weeks |
| Leptospirosis (1st dose) | Non-core | 12 weeks |
| Leptospirosis (2nd dose) | Non-core | 15 weeks |
| Lyme disease (1st dose) | Non-core | 12 weeks |
| Lyme disease (2nd dose) | Non-core | 15 weeks |
Adult Cavalier King Charles Spaniel boosters and prevention
- DHPP booster — One year after the puppy series, then every 3 years for most adult dogs.
- Rabies booster — First adult rabies one year after the puppy shot, then every 1-3 years depending on state law and vaccine type.
- Bordetella booster — Annually (or every 6 months) for social dogs that board, groom or visit dog parks.
- Leptospirosis booster — Annual booster where leptospirosis risk is present.
- Heartworm prevention — A monthly chewable or topical, year-round in most of the U.S. An annual heartworm test is recommended.
- Flea & tick prevention — Monthly (or every 3 months for some products) to protect against fleas, ticks and the diseases they carry.
- Intestinal deworming — Puppies are dewormed every 2 weeks until 12 weeks, then monthly to 6 months, then every 3 months as adults.
Cavalier King Charles Spaniel lifespan vaccine map
How the Cavalier King Charles Spaniel's vaccine needs change from puppyhood through the senior years. This breed typically lives 9-14 years.
0-1yr: DHPP x3, rabies, bordetella.
1-7yr: DHPP every 3yr, rabies every 1-3yr, bordetella annual.
7-9yr: Senior cardiac priority, core per vet.
9-14yr: Geriatric, minimize all interventions..
Cavalier King Charles Spaniel age-stage vaccine guide
Puppy: Gentle DHPP series, careful handling of head and neck.
Adult: Core vaccines, annual cardiac auscultation.
Senior (7+yr): Core on vet advice only, minimize stress..
Senior Cavalier King Charles Spaniel vaccine considerations
As Cavalier King Charles Spaniels enter their senior years, vaccine decisions require more individualized judgment.
- DHPP (Senior): Continue every 3 years
Core immunity usually holds in seniors. Some vets recommend antibody titer testing instead of automatic boosters for dogs over 10.
- Rabies (Senior): Every 1-3 years per state law
Legally required regardless of age. Discuss 3-year vs 1-year vaccine with your vet if your senior has chronic conditions.
- Bordetella (Senior): Annual if social; skip if homebound
Senior dogs with weaker immune systems that still visit groomers or daycare should stay current. Homebody seniors can often skip.
- Leptospirosis (Senior): Annual if exposure risk remains
Older kidneys are more vulnerable to lepto damage. If your senior still hikes or has wildlife exposure, keep it current.
- Heartworm prevention (Senior): Monthly, year-round
Senior dogs tolerate heartworm treatment poorly, so prevention is even more important than in younger dogs.
- Antibody titer testing: Discuss with vet annually
A blood test that measures existing antibody levels. Can sometimes replace automatic boosters in healthy seniors, avoiding unnecessary vaccines.
Cavalier King Charles Spaniel vaccine and health overview
Mitral valve heart disease and syringomyelia are the signature concerns. None of these conditions are caused or cured by vaccines, but a Cavalier King Charles Spaniel that stays on schedule for core vaccines, heartworm prevention and routine vet visits gives you the best chance to catch breed-specific problems early before they become serious.
The Cavalier King Charles Spaniel's lifestyle directly affects which non-core vaccines make sense.Gentle, social Cavaliers visiting groomers and parks usually need Bordetella. A dog that rarely leaves a city apartment has different vaccine needs than one that hikes off-leash every weekend in tick country.
Bring this 2026 schedule to your vet and confirm the timing for your individual Cavalier King Charles Spaniel, especially the non-core vaccines which depend on where you live and how your dog spends its time. Your veterinarian can also advise whether titer testing (antibody level measurement) is appropriate for your Cavalier King Charles Spaniel as an alternative to automatic boosters, particularly once the dog enters its senior years.
Want exact dates? Use the free 2026 vaccine schedule tool on the homepage: enter your Cavalier King Charles Spaniel's birth date, select the breed from the dropdown, and the tool lays out every due date with breed-specific reminders and risk alerts.
Frequently asked questions
When does a Cavalier King Charles Spaniel puppy need its first shots in 2026?
Like all puppies, a Cavalier King Charles Spaniel starts its DHPP series at 6 to 8 weeks of age, with boosters every 3 to 4 weeks until 16 weeks, plus a rabies shot at 12 to 16 weeks. Gentle, social Cavaliers visiting groomers and parks usually need Bordetella. Per AAHA 2026 guidelines, the core schedule for Cavalier King Charles Spaniels is the same as for all breeds, but breed-specific risks affect which non-core vaccines your vet recommends.
How much should an adult Cavalier King Charles Spaniel weigh?
An adult Cavalier King Charles Spaniel is a small-sized breed typically weighing 13-18 lbs with a lifespan of about 9-14 years. Tracking weight at each vet visit helps your veterinarian calculate correct vaccine and medication doses. Small breeds require weight-adjusted vaccine volumes; a full-dose vaccine intended for a 60-lb dog should never be given to a small dog.
What health problems are common in Cavalier King Charles Spaniels?
Mitral valve heart disease and syringomyelia are the signature concerns. Mitral Valve Disease (MVD) affects nearly all Cavaliers by age 10 and is the leading cause of death. Syringomyelia (SM) is a severe neurological condition caused by skull malformation, affecting up to 70% of the breed to some degree and causing extreme pain. Episodic Falling Syndrome and dry eye are also breed-specific issues. Staying current on core vaccines and prevention is one part of keeping a Cavalier King Charles Spaniel healthy. Knowing your breed's risks helps you and your vet decide which non-core vaccines (leptospirosis, Lyme, Bordetella) are worth adding to the core schedule.
How often does an adult Cavalier King Charles Spaniel need booster shots?
After the puppy series and a one-year booster at roughly 12-16 months, most adult Cavalier King Charles Spaniels get core DHPP every 3 years and rabies every 1 to 3 years per state law. Core DHPP + rabies. Bordetella for social dogs. Discuss whether the stress of non-core vaccines outweighs benefit given breed's health burden. Heartworm prevention is given monthly year-round. Your vet sets the final plan based on your dog's exposure risk and health status.
What vaccines are specifically recommended for Cavalier King Charles Spaniels?
Core DHPP + rabies. Bordetella for social dogs. Discuss whether the stress of non-core vaccines outweighs benefit given breed's health burden. This recommendation is based on the breed's typical lifestyle and health profile. Gentle, social Cavaliers visiting groomers and parks usually need Bordetella. Always discuss which non-core vaccines make sense for your individual dog with your veterinarian.
How does the Cavalier King Charles Spaniel's size affect vaccine dosing?
Small breed dose. Keep vet visits calm and short. Avoid handling that pressures the neck or head given syringomyelia risk. Discuss with vet whether the annual exam can be a low-stress consultation. Small breeds like the Cavalier King Charles Spaniel need particular attention to weight-based dosing to avoid overdosing. Your veterinarian calculates the exact volume based on your dog's current weight at each visit.
What is the complete vaccine timeline for a Cavalier King Charles Spaniel across its lifespan?
0-1yr: DHPP x3, rabies, bordetella. 1-7yr: DHPP every 3yr, rabies every 1-3yr, bordetella annual. 7-9yr: Senior cardiac priority, core per vet. 9-14yr: Geriatric, minimize all interventions. This is a generalized timeline based on AAHA 2026 guidelines. Your veterinarian will personalize it for your Cavalier King Charles Spaniel based on individual health, lifestyle and local disease risk.
When is a Cavalier King Charles Spaniel considered a senior dog for vaccine purposes?
Small breeds like the Cavalier King Charles Spaniel are generally not considered seniors until 10-11 years old due to their longer lifespan of 9-14 years. Their vaccine needs change later than larger breeds. Puppy: Gentle DHPP series, careful handling of head and neck. Adult: Core vaccines, annual cardiac auscultation. Senior (7+yr): Core on vet advice only, minimize stress.