This picture taken on April 6, 2024 shows a native Australian koala being held by a keeper during a show for tourists at Hartley’s Crocodile Adventure Park located north of the Queensland city of Cairns in Australia. David Gray/AFP via Getty Images
The Australian federal government has approved a historic single-dose vaccine to protect koalas from chlamydia, a disease threatening the survival of the species.
Chlamydia can cause painful infections, infertility, blindness, and death in koalas.
