A deployable cattle TB vaccine must not be considered a silver bullet to eradicate the disease in herds, a world-renowned expert on bovine TB has warned.Field trials of a CattleBCG (Bacille Calmette-Guerin) vaccine and diagnostic test to Differentiate Infected from Vaccinated Animals (Diva) are due to get under way in England and Wales next year.More than a decade of research led by Prof Glyn Hewinson, Prof Martin Vordermeier and Dr Gareth Jones, along with a number of international scientific collaborators, has resulted in the development of a bovine TB Diva skin test, called DST-F.
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