How long does a tick vaccine work in a dog? - briefly
Immunity from a canine tick vaccine generally persists for about one year, after which a booster is advised. Protection typically starts two weeks after the injection.
How long does a tick vaccine work in a dog? - in detail
Tick vaccines for dogs are formulated to induce immunity that lasts approximately twelve months after the initial series. The standard protocol involves two injections given three to four weeks apart, followed by an annual booster to sustain protection. Immunity develops within two to three weeks after the second dose, reaching peak antibody levels around four to six weeks.
Factors influencing the length of protection include:
- Age: puppies under twelve weeks may have a reduced response, requiring a delayed schedule.
- Health status: dogs with immunosuppressive conditions may experience a shorter duration of immunity.
- Breed-specific differences: some breeds exhibit variable antibody titers, potentially necessitating earlier revaccination.
- Geographic exposure: high‑risk areas with heavy tick populations can accelerate waning immunity.
Monitoring antibody titers can guide individualized revaccination timing, but routine practice follows the annual booster recommendation. Failure to administer the booster on schedule may leave the animal vulnerable to tick‑borne diseases such as ehrlichiosis, babesiosis, and Lyme disease.