Eryvac® for Sheep

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  • Eryvac® is registered for the control of Erysipelas polyarthritis in lambs and sheep. Erysipelas infection may result in damage to the joints of sheep leading to arthritis.

    Arthritis affects all the sheep producing regions; it is not restricted by geography.

  • For the control of erysipelas infection in sheep causing:

    • Lameness and inability to stand & walk
    • Issues with transport, not ‘fit to load’
    • Reduced weight gain
    • Losses through trim and condemnations at the abattoir
    • Chronic arthritis caused by erysipelas leads to production losses due to poor body and reduced wool growth.
    • Control of Erysipelothrixrhusiopathiae arthritis in all classes of sheep.


    • Eryvac is the only vaccine that controls erysipelas arthritis
    • If you save 1 in 200 lambs from arthritis, a complete Eryvac program has paid for itself1
      • A complete Eryvac program has 3 shots, 1 dose in ewes at pre-lambing and 2 lamb doses, one at marking and one at weaning
    • Eryvac can improve profits by up to $0.82/DSE in prime lamb flocks and $0.59/DSE in fine wool flocks2


    1. Graham Lean and Associates. Cost Benefit Analysis

    of Eryvac in Commercial Sheep Flocks. Zoetis Data on File, 2009. 2. Cost Benefit Analysis Of Eryvac In Commercial Sheep Flocks, prepared by SBScibus. Zoetis data on file, 2013.

  • Dose rate: 1mL for all classes of sheep

    Injection site: subcutaneously in the side of the neck just behind or below the base of the ear.


    Lambs need 2 doses:

    1. First ‘priming’ dose at marking;
    2. Second ‘booster’ dose at weaning


    Previously unvaccinated ewes need 2 doses:

    1. First ‘priming’ dose at the time of joining or scanning;  
    2. Second ‘booster’ dose approximately 4 weeks before the expected date of lambing


    Other classes of previously unvaccinated sheep need 2 doses:

    1. First ‘priming’ dose
    2. Second ‘booster’ dose approximately 4 weeks after


    Previously vaccinated sheep need ‘annual booster’ vaccinations:

    • For ewes vaccinate 4 weeks before the expected date of lambing.
    • This should pass temporary immunity to their lambs in the colostrum, or first milk, to protect them for the first 6 to 8 weeks of their lives.


    Eryvac can be stored and used for up to 30 days after first opening:

    On each subsequent reuse, swab the opening with a suitable disinfectant (for example, methylated spirits) both before and after using. A sterile needle must be used each time product is removed. Store unused material upright, at 2oC to 8oC (refrigerated) and in the original cardboard packaging to protect from light.

    • Localised swelling may develop at the injection site and a firm nodular lump may persist for some weeks or even months.


    • Storage:
      Store at 2oC to 8ºC (refrigerate. Do not freeze.) Protect from light.


    • Withholding period:


    • Schedule:



    Injection: 250mL, 500mL (plastic packs).

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