Vaccine does not require anaesthetic or booster shots, giving researchers hope it can be rolled out to wild populations Sign up for climate and environment editor Adam Morton’s free Clear Air newsletter here A single-dose vaccine to protect koalas from chlamydia has been approved for use around Australia for the first time, a move wildlife carers say offers hope for a “heartbreaking” situation. Crucially, no booster shot is required, giving researchers hope that the vaccine can eventually be used in the wild. “It’s difficult to catch a koala once, let alone two or three times,” says Dr Sam Phillips, a microbiologist who has spent almost a decade working on the vaccine. Continue reading...