In what's been hailed as a "massive breakthrough," a chlamydia vaccine implant has been administered to a wild koala for the first time. This is the only koala chlamydia vaccine that uses two doses. Now, thanks to the implant, it can be applied in one examination.
Source: [Phys.org](https://phys.org/news/2026-07-koala-chlamydia-vaccine-implant-inserted.html)