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Chlamydia vaccine
September 19 , 2025
15 hrs 0 min
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- Australia has approved the world’s first single-dose vaccine to protect koalas from chlamydia, a disease that causes infertility and death in endangered populations.
- The vaccine reduces symptoms in breeding-age koalas and cuts mortality from chlamydia by at least 65% in the wild.
- Koala populations in southeast Queensland and New South Wales face infection rates up to 70%, threatening local extinctions.
- Koalas are endangered in several Australian states and without intervention, extinction by 2050 is possible.
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