One of the most historically dangerous rat-borne diseases is the bubonic plague, also called “Black Plague,” and its variants. And people cannot get heartworms from their pets. Koala chlamydia — a sexually transmitted disease with symptoms ranging from infertility and blindness to excruciating urinary tract infections and kidney failure — is now at epidemic levels, with some wild populations in Queensland having a 100 per cent infection rate. Thanks to an increase in pet vaccinations, wildlife now account for more than 90 percent of all reported rabies cases. In some parts of Australia, koala infection rates are as high as 90%. The Koala's unusually large, leathery nose is one of its most noticeable features. “Pathogens that we already know can be carried by worms include E. coli O157 and salmonella. They have sharp teeth and claws capable of causing deep wounds and any dog that attacks a koala may risk serious injury," the Department of Environment and Heritage Protection states on its website. Yes: Dogs can get tetanus. Toxoplasmosis is spread by a tiny parasite called Toxoplasma gondii that can be found almost everywhere. In people, chlamydia is a common sexually transmitted disease. "It should also be remembered that koalas are capable of defending themselves. Did you know that a heart attack isn't the same thing as a cardiac arrest? How does social media make you feel? There are disease concerns with both wild (rats, mice) and pet (rats, mice, hamsters, gerbils, guinea pigs) rodents and rabbits. 1, 2 Of syphilis cases, 35,063 were primary and secondary (P&S) syphilis, the earliest and most transmissible stages of syphilis. It's possible a svelte brain saves the koala energy, which it has little to spare because of its nutrient-poor diet. Fur or hair has nothing to do with it. Now, scientists from the University of the Sunshine Coast have begun to crack Chlamydia’s code, shedding more light on exactly how Chlamydia pecorum and its associated disease have changed over time to have such catastrophic impacts for livestock and koalas alike. They include goannas dingoes, powerful owls, wedge-tailed eagles, and pythons, all of which are most likely to prey upon juvenile Koalas. Can I get syphilis by having oral sex? Source(s): zoology major. If we can stop the trade of pangolins, we can cut off the illegal trade of other animals as well. The koalas have white on the underside and gray on the rest of its body. The marsupials are known for their active sex lives, and as many as 50 percent of the koalas treated at the university have shown signs of the sexually transmitted disease. The most recent, as well as the deadliest, STD to migrate to humans is HIV, which hunters acquired from the blood of chimpanzees, says Aguirre. In koalas, the effects of chlamydia are devastating, including blindness, infertility and an infection known as 'dirty tail'. hide. Koala Chlamydia is much more severe in the marsupials, causing blindness, infertility or death. The Koala is the only mammal, other than the Greater Glider and Ringtail Possum, which can survive on a diet of eucalyptus leaves. The most common sexually transmitted disease among animals today is brucellosis, or undulant fever, which is common among domestic livestock and occurs in mammals including dogs, goats, deer, and rats. To make this discovery, the researchers fed crows prion-infected mice brains. As a result, they don't give the koalas much energy, causing them to sleep all day! Feral animals are another threat Koalas have had to face since European settlement. Unlike dogs, there are no human-made breeds of spiders. Chlamydia is a common sexually transmitted disease in people, but when it claimed the lives of many koalas in Australia, no one ever knew it could have taken a deadly toll. Here are five diseases than can be spread from bites: Infections. In people, chlamydia is a common sexually transmitted disease. As long as they are not classified as protected or endangered, tarantula aficionados can keep whichever one they fancy. It isn't syphilis. Usually between 18 to 22 hours. There is a common misconception that Koalas get 'drugged out' or 'high' on eucalyptus leaves and that's why they sleep a lot. Earlier this month, researchers from Queensland University of Technology mapped the koala's genome, and uncovered 12,000 out 20,000 genes. (Cats often choose gardens as their litter boxes.). Koalas can make other sounds, from snores to screams. Although Leptospira has been detected in reptiles and birds, only mammals are able to transmit the bacterium to humans and other animals. Syphilis is caused by Treponema pallidum bacteria, and is usually curable nowadays with antibiotics. isitbullshit: all koalas have syphilis. A different strain infects koalas, but it too can be spread sexually, and it's causing a devastating epidemic. • Many people who have syphilis don’t know it. Best Answer. • Anyone can get syphilis. The koala spends much of its time in the high forks of eucalyptus tree branches, so adjust your vision and hone in on the treetop hotspots to see koalas dozing in the trees, especially in Gippsland and on the Great Ocean Road. Not all koalas have it, but there is an outbreak. Yes: Dogs can get tetanus. Mouse diseases, however, can also be spread indirectly: ticks, fleas and mites that have fed, at some point, on the infected mouse and then transmit that infection to humans. Rothschild believes that Columbus and his crew contracted syphilis and caused a documented outbreak in Europe on their return. Eucalyptus is poisonous to most animals. This myth possibly arose as a way of explaining why Koalas sleep for up to 22 hours a day. Posted by 10 months ago. share. The diseases are spread to humans directly: through contact with mice feces, saliva or urine, mouse bites and mere contact. 4 years ago. Employed veterinarians must carry individual professional liability insurance for protection. Baylisascaris procyonis: (Bay-lis-asc-aris) The Raccoon Ascarid or roundworm is a parasite of the intestines of raccoons that sheds large numbers of eggs in the feces. 2. Can you get syphilis other than sexually? Equipment commonly carried on the belt includes: handcuff, radios, baton, hand-held protection devices such as pepper spray, firearms and ammunition, taser, flashlights, batteries, gloves, pens, pencils, keys, multi-tool, window punch etc. Koalas may live from 13 to 18 years in the wild. Syphilis also came to humans from cattle or sheep many centuries ago, possibly sexually”.. ... All the evidence suggests that koalas do not enjoy that, and it may even be harming them. Not long after, a koala, that would spend most of its time in trees, wanders out of the same burrow. Prions—the infectious proteins that cause illnesses such as mad cow disease, scrapie, chronic wasting disease and Creutzfeldt-Jakob disease—can pass through the digestive systems of crows, new research published in PLoS One finds. Turtles, frogs, iguanas, snakes, geckos, horned toads, salamanders and chameleons are colorful, quiet and often kept as pets. There are numerous reports of salmonellosis from pet iguanas, including fatal infections. Syphilis causes sores on your genitals (called chancres). The diseases are spread to humans directly: through contact with mice feces, saliva or urine, mouse bites and mere contact. 2. Koalas are so stupid that if you take a few eucalyptus leaves and put them on a plate in front of a koala it won't eat them. Some were quick to comment that on Koala Yoda's malnourished state. Chlamydia, a type of sexually transmitted disease also found in humans, has hit wild koalas hard, with some wild populations seeing a 100 percent infection rate. Pets won't catch or spread human viruses. Some regions of Australia are struck with a 90 percent infection rate among koala bears. The sore appears at the spot where the bacteria entered your body. Koalas have a scent gland on their chest that they rub against trees to mark their territory. Not only do rabbits fuck like rabbits, they carry syphilis as if they were all truck-stop hookers. "This promises to benefit gene discovery and the development of immunological tools that will help us to fight diseases in our other threatened and endangered wildlife species," he added. As you can see above animals (including dogs) can get E. coli from eating food infected with this bacteria. Koala Chlamydia is much more severe in the marsupials, causing blindness, infertility or death. Dolphins are considered sentinel species that can herald health threats to humans, biologists say. Top 18 Best Weight Loss Pills For Women In 2020, 9 Amazing Facts About Protein Coffee and How It Can Change Your Life. Any warm-blooded mammal can carry or contract rabies, but the primary carriers in North America are raccoons, skunks, bats, foxes and coyotes. Iguanas can and do carry Salmonella on their skin. Chlamydia, a type of sexually transmitted disease also found in humans, has hit wild koalas hard, with some wild populations seeing a 100 percent infection rate. No. A different strain infects koalas, but it too can be spread sexually, and it's causing a devastating epidemic. Early syphilis can be cured, sometimes with a single shot (injection) of penicillin. Koalas cannot carry tuberculosis. One female koala from the Australia Zoo Wildlife Hospital named Penny represents one of the most celebrated marsupials being admitted for treatment of the fatal disease. Koalas in Victoria. In koalas, chlamydia’s ravages are extreme, leading to severe inflammation, massive cysts and scarring of … Syphilis is a human disease. They also carry no diseases communicable to humans, they do not smell and they are extremely clean. Some furry facts. You have to assume that every iguana is carrying Salmonella. Armadillos are one of the only known animals to carry leprosy. Weil's Disease (Leptospirosis) Weil's disease is a form of a bacterial infection also known as Leptospirosis that is carried by animals, most commonly in rats and cattle. The most common worm is roundworms. Not only the wildlife, a potential chlamydia vaccine for koalas could also open doors to finding one for humans, as well. To the dismay of many, no, they don't always like it. “””” How Often Do Animals Get STDs? Yes. Queensland, NSW, Victoria and South Australia are the only states where Koalas are found naturally in the wild. STDs in animals and humans have a historical relationship. Small rodents like squirrels, hamsters, guinea pigs, gerbils, chipmunks, rats, and mice) and lagomorphs including rabbits and hares are almost never found to be infected with rabies and have not been known to transmit rabies to humans. An infected pet can, in turn, infect humans. They are also quite smart, according to a new study that has tracked the movements of the Australian animal in suburban Brisbane. Durden assures us that "lice are quite host-specific, so there is no chance of squirrel lice infesting and feeding on humans." (However, older dogs can catch the parvo virus as well.). Some other common wild animals that may have rabies are skunks, coyotes, bats, and foxes. isitbullshit: all koalas have syphilis. 6.The rabbit community is a festering stinkhole of syphilis. They sleep a lot to conserve energy as their diet requires a lot of energy to digest. Juvenile males are more likely to give off a very slight eucalyptus smell. 69. Syphilis is caused by bacteria, not a virus, so it is impossible for any organism to be infected by a syphilis virus. Now try to sleep tonight. Have syphilis I do,' posted jimbris. The koala's digestive system creates bacteria that deactivate the poison. People can and do get Salmonella from iguanas. chickens can't get parvo. Do koalas get drunk on eucalyptus leaves? Leprosy was in the news too; not because of a sick dog or cat, but because of armadillos. Do you know how to prevent head lice infestations? - Koalas do not live in rainforests or desert areas. Another user joined in, posting: 'Always two infections there are, no more, no less.' Pythons have one more bone in their head than boas do and some additional teeth. You Could Scroll into Trouble. Cows do not get syphilis. While the chlamydia infecting koalas is not the same strain found in the human population, it's also spread through sexual contact and it's much more severe. It is also called the rat lungworm. Mouse diseases, however, can also be spread indirectly: ticks, fleas and mites that have fed, at some point, on the infected mouse and then transmit that infection to humans. Small, young pythons may be attacked and eaten by a variety of birds, wild dogs and hyenas, large frogs, large insects and spiders, and even other snakes. Koalas only eat gum leaves – that part is true – but the leaves don't cause them to get drunk or high. Koalas are having problems with the STD called chlamydia. Even somebody who pets the dog or cat after you is unlikely to catch your virus that way, and "you can't get a cold or the flu from your dog or cat," Schaffner said. In people, chlamydia is a common sexually transmitted disease. People become sick after they touch hedgehogs or anything in their habitats. Syphilis also came to humans from cattle or sheep many centuries ago, possibly sexually”. Diseases carried by rodents can also be spread to humans indirectly, through fleas, ticks, or mites that have fed on an infected rodent. Cases of sexually transmitted diseases grow within the minute, with over 19 millionnew infected patients yearly in the US. Fleas can carry and transmit several potential illnesses of importance to humans, including typhus and plague, and can transmit “cat scratch disease” (infection with Bartonella) among cats who can then spread the disease to humans. All rights reserved. These germs can easily spread to their bodies, habitats, toys, bedding, and anything in the area where they live. Squirrels are known to carry numerous diseases, though only a few are dangerous to humans. These bacteria can cause severe gastrointestinal infections in humans and are commonly found in soil. Rabies. Apple picking could be a good outing to take this fall, as it lends itself to social distancing. There is a common misconception that Koalas get 'drugged out' or 'high' on eucalyptus leaves and that's why they sleep a lot. Their hospital alone treated 300 koalas for chlamydia. Small mammals such as squirrels, rats, mice, hamsters, guinea pigs, gerbils, chipmunks, rabbits, and hares are almost never found to be infected with rabies and have not been known to cause rabies among humans in the United States. In fact, rats and mice are known to spread more than 35 diseases. They need more sleep than most animals because eucalyptus leaves contain toxins and are very low in nutrition and high in fibrous matter so they take a large amount of energy to digest. Also, did you know that, besides primates, koalas are the only animals that leave fingerprints? Birds, snakes, and fish are not mammals, so they can´t get rabies and they can´t give it to you. A different strain infects koalas, but it too can be spread sexually, and it's causing a devastating epidemic. © 2020 Medical Daily LLC. The research might have a potential for human vaccines against chlamydia, however as there is only 10% similarity between the koala and the human chlamydia, we can't be sure. She's checking her bladder for symptoms of chlamydia. But, no, you couldn't get him a tetanus vaccine even if you wanted to. "She's quite an old girl — I think she's over 10 years," veterinary surgeon Amber Gillett told BBC. How do I know if I have syphilis? Chlamydia is a common sexually transmitted disease in people, but when it claimed the lives of many koalas in Australia, no one ever knew it could have taken a deadly toll. This thread is archived. heard this somewhere not sure if its true. If you notice a sore on your genitals or you’re showing any other signs of syphilis, get checked out by a nurse or doctor. Like all STDs, the only way to know is to get tested. We distinguished major established zoonotic infections, such as salmonellosis or ringworm, from other less common or potential zoonoses carried by hedgehogs. Koalas, which normally spend most of their time in the safety of eucalyptus trees, have begun to climb down and drink from artificial water stations provided by University of Sydney researchers. This stage usually starts with a rash on one or more areas of your body. Koalas - smarter than your average bear. In both regions the koala was added to the list of threatened species in 2012. But experts are reporting the disease has reduced the number of koalas from 60,000 to 11,000 from 1990 to 2012. However, koalas are not drunk or high on eucalyptus! 75% Upvoted. However, other animals and humans can pass the virus onto dogs. Hedgehogs can carry Salmonella germs in their droppings while appearing healthy and clean. Parvovirus affects mainly puppies and younger dogs. Last month, a 6-year-old koala named Jack arrived at the Friends of the Koala facility where he was being treated for swollen eyes. But while some of these koalas see promising future, most had to be put down. Syphilis is spread through vaginal, anal, and oral sex. Syphilis is a really common STD. Mature males tend to have a stronger odour because of their scent gland and it can be a strong musky odour than eucalyptus. They prefer humans as a food source, but not because humans are easier to bite. Chlamydiaceae bacteria can cause acute or chronic disease in the eyes, lungs, genital track and intestines. While uncommon, leprosy has been reported in both dogs and cats (1,2). Are koalas dangerous? Koala STDs could hold key to tackling human chlamydia Queensland researchers have identified how chlamydia, typically associated with female infertility, damages sperm … Infected rats pass larvae of the parasite in their feces. What’s worse, dolphins don’t have arms and thus can’t use those canister thingies where you freeze off your genital warts right before a hot date. They do rest a lot, but it's not due to a hangover! Chlamydia not syphilis. In some parts of Australia, koala infection rates are as high as 90%. Some of the more common include tularemia, typhus, plague, and ringworm. Can you have a black footed ferret as a pet? Pythons have predators. Scientists have discovered that the beloved koala bear may be the least intelligent mammal on the planet. Clothing, shoes and children's toys are favorite items for canine kleptomaniacs. Salmonella. This project will hopfeully help scientists to find an effective vaccine that could put an end to the mounting infection rates and death toll. In people, chlamydia is a common sexually transmitted disease. Is syphilis fatal? They might look fluffy and cute, but they have been known to bite and have sharp claws. Koalas sleep 18 to … But even the most hard-boiled cynic can't withstand the cuddle of a koala. Sadly, Henry probably passed on his syphilis to all his kids – his son and heir, King Edward VI, almost certainly died young from inherited syphilis – but hey, at least none of them were caught by paparazzi with their asses hanging out. Rat urine is responsible for the spread of leptospirosis, which can result in liver and kidney damage. Koalas, wombats and Tasmanian devils all share the three-vagina structure. The adult form of the parasite is found only in rodents. It can be caught by humans through contact with rat or cattle urine, most commonly occurring through contaminated fresh water. The young of elephants, giant pandas, koalas and hippos eat the feces of their mothers or other animals in the herd, in order to obtain the bacteria required to properly digest vegetation found in their ecosystems. Bird fleas often feed on squirrels; and squirrel fleas feed on birds — and have been known to bite people, too. A koala's brain is smaller, when compared to its body, than other marsupial brains: about 0.2% of its body weight. These animals frequently carry bacteria called Salmonella that can cause serious illness in people. These animals frequently carry bacteria called Salmonella that can cause serious illness in people. Match making apps such as Tinder have accumulated 50 million users since 2012 and now match 15 million people a day while Grinder, focussing on homosexual men, has 6 million users making 10,000 matche… Hepatitis B and C. Both of these viruses, but especially Hep B, can come from a bite. In people, chlamydia is a common sexually transmitted disease. Horses and humans are more susceptible to tetanus, while cats are highly resistant. It's typically spread by direct contact. Mouse diseases. Fleas can carry tapeworm eggs and your cat could accidentally eat such a flea while grooming his itchy skin. Yes. Pottering around in the dark, a wombat, briefly emerges from its burrow before heading back inside. They can carry many diseases including hantavirus, leptospirosis, lymphocytic choriomeningitis (LCMV), Tularemia and Salmonella. Medical Daily is for informational purposes and should not be considered medical advice, diagnosis or treatment recommendation. "We don't know if it's due to the one that causes human disease or not." No. A wombat, a koala and a rabbit in a burrow. Or what to do if you find the critters? Feces contaminated with eggs can become infective to humans after 2-4 weeks of incubation. Omega-3 Fatty Acids: Landing the Big Fish of Body Health, Itchy Heads: It's National Head Lice Prevention Month, Gaming with Friends Can Combat Loneliness, That Rush You Get Hearing a Favorite Tune Is Real, Love Social Media? Archived. Major microbial infections associated with hedgehogs include bacteria such as Salmonella and Mycobacteria, as well as some fungal and viral diseases (2). Symptoms such as diarrhea, ruffled feathers, and lethargy usually occur. Eucalyptus leaves are very fibrous and low in nutrition, and to most animals are extremely poisonous. Syphilis is serious — but it can be cured. “Dirty tail is actually really awful," says Wilson. Tests used to screen for syphilis include: Venereal disease research laboratory (VDRL) test. Do you leave water out all day for puppies? Bed bugs will feed on cats, dogs, birds or other animals when a human host is not present. While female koalas usually live this long, males may die sooner because of their more hazardous lives. Lv 4. The chancre usually develops about three weeks after exposure. report. Fortunately, tetanus is relatively rare in dogs. syphilis THE FACTS • Syphilis (SI fi lis) is a sexually transmitted disease (STD). Their food which is Eucalyptus leaves offers little nutrition. Atlantic bottlenose dolphins can get genital warts, baboons suffer from herpes and syphilis is common in rabbits. There is no alcohol in eucalyptus to intoxicate them. How many hours do Koalas sleep each day? In people, chlamydia is a common sexually transmitted disease. Has the Real Power of Solar Energy Arrived? Prions—the infectious proteins that cause illnesses such as mad cow disease, scrapie, chronic wasting disease and Creutzfeldt-Jakob disease—can pass through the digestive systems of crows, new research published in PLoS One finds. Koala Syphilis. This slideshow shares some information you might find helpful. Heartworms are only spread by the bite of a mosquito and cannot be passed directly from one dog to another. The … Although this STI renders the host infertile, it also increases the host’s desire to mate. Human mouths contain high levels of bacteria, especially of the variety that can infect human tissues. While most people infected with syphilis develop only one chancre, some people develop several of them. The Koalas food is also equally culprit in this regard as well. Syphilis spreads from person to person via skin or mucous membrane contact with these sores.After the initial infection, the syphilis bacteria can remain inactive (dormant) in your body for decades before becoming active again. What can you do for a dog with a bloated stomach. They live in the tall eucalypt forests and low eucalypt woodlands of mainland eastern Australia, and on some islands off the southern and eastern coasts. When your dog steals something, she wants to take possession of the object for any number of reasons. A different strain infects koalas, but it too can be spread sexually, and it's causing a devastating epidemic. It takes about seven months for the parasite to develop into an adult heartworm once a dog is bitten by an infected mosquito. Apparently, the koala population is threatened by a terrible and widespread outbreak of chlamydia. Examples of transmissible bird diseases associated with pigeons, geese, starling and house sparrows: Histoplasmosis is a respiratory disease that may be fatal. Sadly, yes. Small mammals such as squirrels, rats, mice, hamsters, guinea pigs, gerbils, chipmunks, rabbits, and hares are almost never found to be infected with rabies and have not been known to cause rabies among humans in the United States. Tarantulas can live up to 30 years. Researchers tracking the population of koalas on the Koala Coast (a stretch of 375 square kilometres south of Brisbane) have found that 52% of the koalas observed showed chlamydia-like … Then you should know that scientists are exploring a Chlamydia vaccine for koalas, which can rapidly turn into a breakthrough in vaccinating humans. 1 0. butor. Fortunately, tetanus is relatively rare in dogs. Snails and slugs get infected by ingesting the larvae. Today the natural predators of the Koala do not make a significant impact on wild populations. Parvovirus can affect dogs, wolves and foxes. Not that way. The rash can show up when your primary sore is healing or several weeks after the sore has healed. No. The doctors administered antibiotics and surgically trimmed his eyes so he could recover. In some parts of Australia, koala infection rates are as high as 90%. Over the next decade, the International Energy Agency expects renewable energy to account for 80% of the world's power consumption. When your puppy squirms when you pick him up, it's not just because he's being a wiggly puppy. Those prehistoric-looking armored mammals carry the leprosy bacteria, Mycobacterium leprae. Koalas are struck by a different strain of the disease from that which affects humans – although it seems humans can catch the koala version through exposure to an infected animal’s urine… Do veterinarians carry malpractice insurance? Syphilis is a bacterial infection usually spread by sexual contact. Some dogs steal because they long for your attention. The infectious bacteria usually aren't fatal, but they can severely impact a koala's health. Why do koalas have two Peni? The employer as part of a benefits package may pay for coverage for employed veterinarians. HIV. Bat-borne viruses are transmitted via bat bite and transfer via saliva, as well as aerosolization of saliva, feces, and/or urine. Herpes. And wash hands thoroughly after touching a bird feeder or birdbath. Candidiasis is a yeast or fungus infection spread by pigeons. Dying because of starvation is almost the natural mortality reason for the Koalas, if the Koalas do not get the victims of any other predators such as Eagles, Dingoes and wolves etc. Dental Hygiene Month is almost over, but we’re back with tips for keeping your mouth healthy at home. Do dogs carry the virus syphilis? Rodents, such as rats, mice, prairie dogs and rabbits, are associated with a number of health risks. You’d be surprised to hear this, but even animals get STDs! “We already know that worms do harbour bacteria that cause human disease (pathogens). Rodents can carry other diseases (such as plague). Reptiles and amphibians are popular pets with many families. The RPR test also finds syphilis antibodies. At what age should you neuter a large breed dog? The koala cub stays in the mother's pouch for 5 months. STI were thought to have been increasingly under control with decreasing infection rates (2) but in recent years they are making a significant comeback, which some scientists are correlating to the rise of dating applications (apps). Yes, mostly Koalas do smell like cough drops or certainly a pleasant eucalyptus smell. Untreated syphilis can be fatal.Syphilis is a life threatening STD. Affected animals develop nodules in and under the skin associated with acid-fast bacteria in the cells (3). During 2018, there were 115,045 reported new diagnoses of syphilis (all stages), compared to 38,739 estimated new diagnoses of HIV infection in 2017 and 583,405 cases of gonorrhea in 2018. Like rabies virus, newly emerging bat-borne viruses can be transmitted to humans directly by bats. Rodents such as mice, rats, gophers, moles, chipmunks, prairie dogs, and rabbits do not carry rabies. The rash can look like rough, red, or reddish brown spots on the palms of your hands and/or the bottoms of your feet. Disclaimer: I'm an animal lover. It can also infect humans. It can infect many animals; for example, it can be in the meat we eat, the birds and mice cats eat, and it can infect cats themselves. However, employed veterinarians are not protected by the owner's policy. Years of research suggest that vision, lung function, immune system performance, and even sperm count can all be improved by omega-3s. So far, tests of the koala vaccine have brought encouraging results: Eighteen females treated with … • The first symptom is a painless, round, and red sore that can appear anywhere you’ve had sex. Transfer occurs when fleas from the rats bite human beings. Koalas can only live in bushland where their favourite trees are growing, and they will only eat a few of the hundreds of species of eucalypts which grow in Australia. Chlamydia ravages through the once robust population of koalas in Australia. New skeletal evidence suggests Columbus and his crew not only introduced the Old World to the New World, but brought back syphilis as well, researchers say.