The two-year-old dog became lethargic, thin and listless, deteriorating to the point that it was admitted to a pet hospital for a week for a blood transfusion.
“I was really worried about him,” Ms Powell, an enrolled nurse, said.
Testing confirmed Leo had ehrlichiosis, a disease transmitted through bites from brown dog ticks carrying the Ehrlichia canis bacteria.
But what worried the specialists is that Leo lives in the urban Top End, which some experts fear is becoming a new stronghold for a disease spreading like wildfire.
The first Australian case was detected in the Kimberley region of Western Australia in May last year.
By June, cases were rapidly emerging in Katherine in the Northern Territory and the surrounding remote communities.
The Northern Territory government has recorded 370 confirmed cases — 110 in the Darwin and Arnhem Land region, 149 in the Katherine region, 36 in Tennant Creek and in Alice Springs and surrounds, 75.
Experts say countless more have been left undetected in remote communities with little intervention.
“When we finally got to bring him home, [the vets] said he needs to stay inside, he’s at risk of spontaneous bleeding and he might not make it,” Ms Powell said.
“It was very full-on, very emotional.
“There were tears basically every night.”
Until the first cases were discovered just last year, stringent biosecurity controls had kept ehrlichiosis out of Australia.
Experts are still baffled by how the disease got in but, according to Professor Peter Irwin from the School of Veterinary Medicine at Murdoch University, the disease is now considered “endemic” across the NT.
“Ehrlichiosis is one of the most serious diseases of dogs in my opinion,” he said.
“It makes them very ill, and many dogs can die.
“Once it establishes into a tick population, it’s very difficult to eradicate.”
Common symptoms include lethargy, fever and cloudy eyes, which can be cleared up with antibiotics but, if left untreated, the disease can lead to blindness, uncontrollable bleeding and death.
“The problem with this disease is that dogs travel and spread infected ticks,” Professor Irwin said.
“Dogs that have moved from an endemic area of the community into the city will possibly bring ticks with them, and the ticks can then drop off.
“There have now been dogs with the disease identified in most other capitals, most as a result of travel from the north.”
Doctor Stephen Cutter, the head veterinarian at Darwin’s Ark Animal Hospital, is no stranger to the crippling disease.
He said up to 40 per cent of the dogs are infected in the remote communities of the Top End he visits on rotation.
But in August of last year, he saw his first case in a pet that had not left urban Darwin.
Arielle Giles, a vet at the Darwin Veterinary Hospital, confirmed the disease’s spread to Darwin, saying she had seen six cases in the past three months.
“It’s a devastatingly bad disease and it’s really difficult to treat,” Dr Cutter said.
“It’s basically everywhere and it’s now a matter of living with it.”
Both Professor Irwin and Dr Cutter said keeping ticks at bay is the best way to prevent ehrlichiosis.
“Because the infection is transmitted so quickly from the tick bites, the most important way of protecting your dog is to use a product, such as a collar that kills ticks before they bite,” Professor Irwin said.
It has now been five months since Leo was struck down by the tiny parasite and, while he is still getting regular check-ups and his future is looking brighter, vets can’t give the all-clear.
“Ehrlichiosis is really nasty in that it can stay hidden in the bone marrow for a long period of time,” Dr Cutter said.
Earlier this year, the NT government brought on a new coordinator to transition the NT’s response to the disease from a biosecurity threat to managing the outbreak.
“This disease is a nationally notifiable disease, which means that suspected cases of E.canis need to be reported, and free testing can be carried out on blood samples from suspected dogs,” said the chief vet at the Department of Industry, Tourism and Trade, Dr Sue Fitzpatrick.
Are playful dogs smarter? Study finds link between learning and romping
Canine eggheads enjoy playing with toys and retrieving objects.
“Gifted” dogs, who have a rare talent for learning lots of words for objects easily, also turn out to be more playful than other dogs, a new study finds.
Prior research in humans has shown a link between playfulness and problem-solving abilities, so animal behavior researchers from Eötvös Loránd University in Budapest, Hungary, wondered if the same was true for rollicking pups.
What is a gifted dog? In the new study, it was Border collies who had proven in prior research that they were able to learn as many as 12 new words per week and then retain them for months.
To take a closer look at the possible association between giftedness and playfulness in dogs, Claudia Fugazza, a researcher in the university’s department of ethology (the study of animal behavior), and her colleagues asked the owners of 165 Border collies to fill out dog personality questionnaires. Twenty-one of the dogs were gifted and the other 114 were just randomly selected with no testing for word learning ability.
The surveys assessed the personality of the animals in five categories:
- Fearfulness, including fear of people, nonsocial fear, fear of dogs, fear of handling.
- Aggression toward people, including general aggression and aggression in certain situations.
- Activity/Excitability, including excitability, playfulness, active engagement and companionability.
- Responsiveness, such as trainability and controllability.
- Aggression toward animals, including aggression toward dogs, prey drive and dominance over other dogs.
For the evaluation of playfulness the owners were asked to rate their dogs in three areas:
- Dog gets bored in play quickly.
- Dog enjoys playing with toys.
- Dog retrieves objects, such as balls, toys and sticks.
The researchers focused solely on Border collies because earlier experiments found that the breed is more likely to be good at learning new words compared to others.
After collecting the survey responses, the researchers then compared the responses from owners of gifted dogs to those from the owners of dogs who had not been identified as gifted.
Playfulness was the only personality trait that was consistently different between the two groups.
It’s not clear from the study whether it’s the playfulness that helps the dogs learn more words, or whether the extra playful ones ended up with more opportunities to learn, said Fugazza, the study’s lead author, said in an email. That’s because gifted dogs tend to learn words for objects when their owners are playing with them.
Are playful dogs smarter?
Not exactly.
“Intelligence is the result of diverse cognitive traits that allow individuals to flexibly solve different types of problems,” Fugazza explained. “Giftedness refers to an extremely good capacity in the case of a specific skill.”
So, maybe gifted dogs are like people who score high on the verbal part of the SATs.
If your pup doesn’t learn words easily, it doesn’t mean it’s a dumb dog. Adam Boyko, an expert in canine genomics, reassures owners that canine intelligence is more than that.
“Both dogs and wolves are playful when they are puppies, but dogs really evolved to living in the human environment and to responding to social cues,” said Boyko, a specialist in the genetics of behavior and an associate professor at the Cornell University College of Veterinary Medicine. “It’s not surprising that the more playful ones exhibit better learning in the domain of learning human words. And it’s not surprising that Border collies, who are bred to respond to human cues, show the propensity to learn words more than other breeds.”
Other breeds of dogs might show intelligence in other ways, Boyko said. For example, wolves are very intelligent although they don’t typically pick up on human cues.
“But they can figure out how to escape,” said Boyko. “Where dogs would look for a person to help, wolves would see how humans did a latch and lock and then the wolves would do it themselves to get out.”
Boyko would like to take the study a step further and look at the genetics of the gifted dogs.
“This is a tantalizing correlation that might be meaningful if you are trying to build better service dogs,” he said.
One thing that can’t be determined from the study is whether the playfulness trait spurred owners to interact more with their dogs and thus teach them more words, said Dr. Nicholas Dodman, a professor emeritus at the Cummings School of Veterinary Medicine at Tufts University, CEO and president of the Center for Canine Behavior Studies and the author of “Pets on the Couch: Neurotic Dogs, Compulsive Cats, Anxious Birds and the New Science of Animal Psychiatry.”
Dodman said the study is interesting but needs to be replicated in a larger number of dogs.
“I would also like to see it done in a different breed,” he said.
The new findings might help people who want to buy or adopt a puppy. It suggests that playfulness might be a good attribute to consider.
“The playful ones might be more likely to interact with a person, assimilate words more easily and be more intelligent,” said Dodman.
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