It has become apparent that some vets are doing AHS I and II vaccinations less than 21 days apart, e.g. on the 9th and 29th of a month. This causes problems for vets who are called to issue movement health certificates as a vaccination that is done even 20 days apart instead of 21 days apart has not been done according to manufacturer’s recommendations and is therefore not valid. This is a reminder to all equine veterinarians, as well as horse owners that AHS vaccinations must be done according to manufacturer’s recommendations to be regarded as valid – that means AHS I and AHS II must be done at least 21 days apart.

Many thanks.