Horses: vaccination and parasite control

Vaccination and parasite control require separate programmes, defined by the veterinarian according to risk and the results of individual checks.

Risk-based vaccination

A risk-based vaccination programme may vary between regions, populations and individual horses. There is therefore no single programme suitable for every horse.

Vaccine selection and boosters should be agreed with the veterinarian within the veterinarian-client-patient relationship.

Data-led parasite control

Parasite control should not rely on treating every horse identically at fixed intervals. Quantitative faecal tests help measure egg shedding and guide the programme.

The veterinarian interprets the results, considers the individual animal and monitors the programme’s effectiveness over time.

Sources and documentary update

Documentation updated on 24 July 2026. This article summarises the official sources or professional guidance listed on the page and does not replace diagnosis, prescribing or instructions from a veterinarian. For any medicine, the summary of product characteristics or package leaflet for the specific presentation remains authoritative.

• AAEP — Equine Vaccination Guidelines (accessed 24 July 2026)
• AAEP — Internal Parasite Control Guidelines (accessed 24 July 2026)

Editorial transparency: sources are listed so that the documentation can be checked. Professional review is stated only after genuine approval by a qualified, identifiable person.