There are concerns that increased climate change is resulting in more Koala’s dying from chlamydia.
Wildlife experts say the silent killer is spreading through Australia's koala population, posing a threat to the marsupial across large parts of the country.
A recent report from the Commonwealth Scientific and Industrial Research Organisation says when the marsupials are exposed to unusually stressful environmental conditions, including hot weather, chlamydia spreads more quickly through their population.
Peter Timms, a professor in microbiology at the University of the Sunshine Coast in Australia, says once koalas' stress hormones rise due to environmental problems, infections often progress from a relatively minor problem to "one that is more serious."