![64edbfc92819d4a6e72cf22435914ce2](https://utterbuzz.com/wp-content/uploads/2021/10/64edbfc92819d4a6e72cf22435914ce2.jpg)
A new experimental vaccine could put a serious dent in the widespread epidemic of chlamydia that has devastated populations of koalas. This month, scientists in Australia announced the start of a large clinical trial that will vaccinate hundreds of koalas against the bacterial disease, which also sickens humans around…