Amail received from Sharon Cooksey BVSc, MRCVS, the Veterinary Manager (Ruminant) at Merial Animal Health Ltd
March 28 2009
First and foremost Merialís BTVPUR AlSap 8 vaccine has been issued with a new Full licence as a result of further studies submitted to the EMEA. This new licence has new data and recommendations on its use in youngstock which may answer your questions.
The new recommendations can only be included on a licence if they are backed up by study data to approve the change.
BTVPUR AlSap 8 is the only vaccine licensed which prevents viraemia in a vaccinated animal challenged by BTV8 disease. The vaccine can be used from 1 month in animals born to non vaccinated dams and from 2.5 months in animals born to vaccinated or immune dams.
It is worth pointing out that this statement regarding minimum age of vaccination has been fully assessed and validated by the European Medicines Agency
Some immunity is conferred by a single dose in cattle but a second dose is required to result in a sustainable immunity and to ensure full protection against viraemia.
The licence also includes full results of work done to support safe use throughout pregnancy in sheep and interim results demonstrating safety for at least the last trimester in cattle (work ongoing)
The new licence also includes a change to the dose interval for cattle for Merialís BTVPUR AlSap 8 vaccine and the second dose can now be given be given at 3 -4 weeks after the first.
I hope this answers your questions. Please do not hesitate to contact us again if you have further questions.
Sharon Cooksey BVSc, MRCVS
Veterinary Manager (Ruminant)
Merial Animal Health Ltd