A Queensland wildlife hospital has given a koala suffering chlamydia the all-clear after a six-week trial of a new vaccine.

The vaccine was developed by a team of researchers from the University of the Sunshine Coast in Queensland with funding from the Redland City Council.

Flann the koala is ready to be released back into the wild. Credit:Ben Beaden

Professor Peter Timms led the trial, which he described as unique because vaccines are usually given as a preventative rather than a cure.

Vaccines against chlamydia had already been tested on healthy koalas with positive results, he said, however the disease remained a threat to koalas in the wild.