NEWS

• Australia’s veterinary medicine regulator has approved the world’s first chlamydia vaccine for koalas.
• Developed by the University of the Sunshine Coast, Queensland, after over a decade of research led by Prof. Peter Timms.

HIGHLIGHTS

Significance of Chlamydia Threat

• Chlamydia is a major cause of infertility, blindness, urinary infections, and death in koalas.
• Accounts for up to 50% of deaths in wild populations.
• Some colonies in Queensland and New South Wales report infection rates of 50–70%.

Features of the Vaccine

• Single-dose; no booster required.
• Shown to reduce symptomatic infections and lower mortality by at least 65% in wild populations.
• Approved for use in wildlife hospitals, veterinary clinics, and field operations.

Population Estimates

• Australian Koala Foundation: Fewer than 100,000 koalas remain in the wild.
• Government-backed National Koala Monitoring Program (2022): Estimated 224,000–524,000 koalas.

Broader Context

• Koalas are listed as endangered in Queensland, New South Wales, and ACT.
• Habitat loss due to urban expansion and wildfires remains the primary long-term threat.
• Antibiotics are risky as they disrupt koalas’ eucalyptus digestion, making the vaccine a safer alternative.