New Vaccine for Deadly Elephant Virus Ready for Wider Use

Elephant Endotheliotropic Herpesvirus (EEHV)

• 🐘 EEHV is an endemic virus in elephants that can cause a fatal hemorrhagic disease, potentially killing young elephants within 24 hours of symptom onset.
• ⚠️ Fatal cases have been reported across India, Nepal, Myanmar, and Thailand, as well as in conservation breeding programs.

Vaccine Development and Trials

• 🔬 Researchers from Chester Zoo, the University of Suri, and the Animal and Plant Health Agency have developed a vaccine against EEHV.
• ✅ A proof-of-concept trial demonstrated that the vaccine is safe and effectively triggers strong immune responses.
• 💡 The vaccine works by using tiny virus fragments, created when the virus replicates inside an elephant cell, to train T-cells to identify and destroy infected cells.

Future Use and Accessibility

• 🎯 Initial tests focused on adult elephants, which generally manage the virus well, but the vaccine is primarily intended for young elephants with developing immune systems.
• 🌍 The vaccine is designed for use in zoos and sanctuaries, with ongoing work to develop suitable delivery options for elephants in their natural range countries.
• 🚀 The next steps involve prioritizing vaccination for calves most at risk and addressing the legal and logistical challenges for wider distribution.