“An Asian elephant at Houston zoo in the US has received the first mRNA vaccine against herpes, which is the leading killer of Asian elephants calves in captivity.

Tess, a 40-year-old Asian elephant, was injected with the trial vaccine at the Texas zoo in June, after a spate of deaths in juveniles in zoos around the world from the elephant endotheliotropic herpesvirus (EEHV).

Dr Paul Ling, who researches herpes in humans at Baylor College of Medicine in Houston, developed the elephant mRNA vaccine, which is designed to boost the immunity of young elephants.”

From The Guardian.