The content originally appeared on: CNN The culprit is chlamydia, a sexually transmitted virus that infects more than 100 million people worldwide annually and can cause infertility in humans if left untreated. For koalas, uncontrolled chlamydia can cause blindness and painful cysts in a animal's reproductive tract that may lead to infertility or even death. Worse still, antibiotics used to treat the disease can destroy the delicate gut flora koalas need to consume their staple diet of eucalyptus leaves, leading […]
