Chester Zoo is embarking on a world-first trial of a vaccine that could save the lives of young elephants.

It’s designed to protect the animals from a common and very dangerous virus called elephant endotheliotropic herpes virus.

The disease is responsible for more than half of the deaths of Asian elephants in zoos and is a significant threat to elephants in the wild.

It’s hoped that if the trial is successful the vaccine will be able to roll out around the world including in wild elephant populations.

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