(WILDLIFE) Scientists are noticing a dangerous epidemic blazing through Australia’s Koala population — chlamydia. The sexually transmitted disease can be highly dangerous to the marsupials’ reproductive systems, potentially impairing the high percentage of the infected population and endangering the species. A few organizations are studying the infected marsupials in hopes of finding an effective treatment, including the Australia Zoo Wildlife Warriors. Global Animal encourages reader donations on behalf of the much-beloved mammals which can be made directly on the Wildlife Warriors’ website. — Global Animal

AOL News, Larry Knowles

Photo Credit: Australia Zoo Wildlife Warriors

The world’s koala population is being ravaged by an epidemic that would seem at odds with the animal’s image as the cuddly emblem of Australia. According to researchers, 50 to 80 percent of the marsupials are infected with a disease commonly associated with human promiscuity: chlamydia.

That’s right, chlamydia. The situation is so dire, in fact, that experts fear the koala may become extinct in a few decades if a vaccine isn’t developed.

The disease’s effects include severe conjunctivitis (or “pink eye”), incontinence, prostatitis and kidney damage. Chlamydia is weakening koalas to the point where they no longer have the energy to survive. It can also cause conditions such as urinary tract infections that can impair the reproductive system. Zoologists say 30 to 45 percent of female koalas have been left infertile.

While nobody knows how koalas first came to be infected with chlamydia, some researchers speculate koalas may have been exposed to infected mammals at some point in their evolution. The disease spreads among koalas through male-male and male-female sexual contact, as well as orally from mother to young during child rearing.

Though the rate of infection has historically been quite high, the expression — or display of symptoms — has been low. It’s with extreme stress among the animals, however, that the disease then expresses itself.

And over the past decade, koalas have been stressed.

They’ve lost vast portions of their habitat to human development. Crammed into ever-smaller fragments of land and in areas with severe human encroachment, such as the “Koala Coast” in southeastern Queensland, the koala population has been almost completely wiped out.

“We’re looking at a situation where koalas in southeast Queensland would be functionally extinct,” said William Ellis, a researcher at the University of Queensland, in an interview with AOL News.

The Australian Koala Foundation estimates that there are fewer than 80,000, and potentially as few as 43,000, koalas left in Australia today.

Photo Credit: Australia Zoo Wildlife Warriors

Since there is no vaccine, koala conservationists can only react to the chlamydia epidemic, treating a small percentage of the animals with long-term antibiotics and anti-inflammatories before releasing them into the wild. A spokesperson at Australia Zoo Wildlife Warriors, a leading conservation group, said koalas with severe reproductive disease or other incurable diseases are euthanized.

While researchers are working on a vaccine, it may arrive too late. And some fear that a vaccine could harm the animal’s specialized digestive tract, which contains healthy bacteria that break down a diet rich in eucalyptus leaves.

“We want to make sure the vaccine helps them,” Peter Timms, a Queensland University of Technology professor working on the vaccine, told AOL News. “While you might treat the chlamydia, you might make their digestive tracts worse.”

While conservationists address the epidemic, the fate of the koala has gone largely unnoticed outside of Australia. That may suit the Australian tourism industry just fine, as koalas are estimated to have a $1 billion impact on the tourism industry.

What tourist, after all, would want to be photographed with an animal known for its chlamydia?

“It’s a benefit to the tourism industry that you don’t see koalas with disease,” Timms said.

More: http://www.aolnews.com/2010/09/17/koala-population-ravaged-by-chlamydia/

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