Notice to Industry 13: EVA vaccine shortage – implications for meeting Australian import conditions

Introduction

The Department of Agriculture and Water Resources is aware of a potential interruption to supply of a vaccine for protection against Equine Viral Arteritis (EVA).

The purpose of this document is to advise of the clauses within Australian import conditions that must be met as an alternative to vaccination while the supply of an EVA vaccine is interrupted.

Australian EVA import conditions

If an alternative vaccine cannot be sourced, the Australian import conditions offer alternative clauses to meet EVA requirements.

These are:

cc) in respect of equine viral arteritis:

For all horses excluding unweaned foals under six months of age:

*(i) in the case of colts and stallions

*aa) A single blood sample has been taken from the horse at least four days after commencement of PEQ and tested using a virus neutralisation test as described in the OIE Manual for equine viral arteritis with negative results.

OR

*dd) A single blood sample has been taken from the horse and tested using a virus neutralisation test as described in the OIE Manual for equine viral arteritis with positive results

and either

*i. the horse has subsequently been test-mated to two mares during the 180 days before export. Blood samples have been taken from the mares on two occasions, at the time of mating and again 28 days after test mating, and tested using a virus neutralisation test as described in the OIE Manual for equine viral arteritis with negative results in each case or

*ii. one semen sample has been taken from the horse during the 180 days before export and tested using a virus isolation test as described in the OIE Manual for equine viral arteritis with negative results.

*(ii) in the case of fillies, mares and geldings:

EITHER

*aa) A blood sample has been taken within 21 days prior to export or two blood samples (at least 14 days apart) have been taken within 28 days prior to export and tested using a virus neutralisation test as described in the OIE Manual for equine viral arteritis with a negative result or a stable or decreasing antibody titre (in the latter case).

OR

*cc) The horse was isolated for the 28 days before export and during this period showed no signs of equine viral arteritis.

Australian import conditions for horses can be obtained in full from the Biosecurity Import Conditions database (BICON)

Background

There are several EVA vaccines available worldwide. Alternative EVA vaccines administered in accordance with manufacturer’s directions are acceptable to meet Australian import conditions.

Please note that if stallions are not vaccinated, they will have to meet one of the above listed alternative EVA import conditions to be eligible for import to Australia. However, stallions previously vaccinated for EVA will test positive to a virus neutralisation test so will be unable to meet the negative test clause *aa) of the import conditions. Therefore, clause *dd) must be met with a positive blood sample followed by either *i. or *ii. as described above.

Last reviewed: 4 November 2019
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