How long does tick vaccination last? - briefly
Protection from a tick vaccine generally endures for roughly 12 months, after which immunity wanes. Annual revaccination is recommended to maintain effective coverage.
How long does tick vaccination last? - in detail
Tick immunization for dogs and cats typically provides protection for one year after each administration. The vaccine’s efficacy declines gradually as antibody titres fall, and manufacturers base the annual booster schedule on clinical trial data that show a significant drop in protection after 12 months.
Key factors influencing the duration of immunity include:
- Vaccine type – Recombinant vaccines (e.g., those targeting the Ixodes ricinus salivary proteins) often maintain higher antibody levels than inactivated formulations.
- Animal age and health – Younger, healthy pets generate stronger, longer‑lasting responses; immunocompromised or geriatric animals may require more frequent dosing.
- Exposure risk – Animals living in high‑tick‑density regions or spending extensive time outdoors may benefit from a semi‑annual booster to ensure continuous coverage.
- Laboratory monitoring – Serological testing can quantify specific IgG titres; values below the protective threshold indicate the need for re‑vaccination before the 12‑month mark.
Clinical guidelines recommend administering the initial series (two doses spaced 2–4 weeks apart) followed by a booster at one year. After the first booster, subsequent doses are usually given annually, unless serology or heightened exposure suggests a shorter interval. Adjustments to the schedule should be documented in the animal’s health record and coordinated with a veterinary professional.