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.
Mexico’s rescue and drug-sniffing dogs start out at the army’s puppy kindergarten
In the middle of a military base outside Mexico City, an army colonel runs what he calls a kindergarten for dogs.
In the middle of a military base outside Mexico City, an army colonel runs what he calls a kindergarten for dogs.
Puppies that one day will become rescue dogs, or sniffer dogs for drugs or explosives, get their basic training here, at Mexico’s Army and Air Force Canine Production Center. The puppies are born and spend their first four months at the facility, before being sent to military units around the country for more specialized training.
Founded in 1998, the center has in the past produced breeds such as German Shepherds and Rottweilers.
Now, it exclusively breeds Belgian Malinois — about 300 of them a year.
“It’s a very intelligent dog, it’s a dog with a lot of hardiness, very resistant to diseases,” said Col. Alejandro Camacho Ibarra, a veterinarian and the center’s director. It is the Mexican military’s only such production facility, and Camacho said it may be the largest in Latin America.
The mainly green-and-white, one-story buildings look like any others at the military camp in the State of Mexico, near Mexico City. But the difference here is in the sounds that fill the air: high-pitch barking from dozens of puppies scattered through its maternities and training camps.
Precautions here are strict because of a recent canine parvovirus outbreak that sickened some of the puppies. Visitors are disinfected with a spray, and must step into a watery solution to clean shoe soles. Only military personnel can touch the puppies. If you want to get close, you need to wear scrubs, shoe protectors and a mask, but you still cannot hold or pet the animals.
The training starts early in life, about a month after birth once the weaning process finishes. And everything is taught as a game.
“We start playing with the dog,” Camacho said. The idea is to draw them to items that trainers call “attractors” — like a ball or a rag — and puppies are challenged to catch them. “Every time it holds his prey, it’s rewarded, congratulated, and it learns to go after that prey, after that attractor,” Camacho added.
Unlike in civilian life, where puppies often get food treats, in the military the only prize for a job well done is a caress and some praise.
In one section of the camp, there’s a trail with obstacles including rocks, a tunnel, a section of empty plastic bottles to clamber over, a ladder and tires.
A soldier beckons the little dogs with a rag they must capture. The brown puppies with black snouts begin running through the trail, jumping over the rocks and crossing the obstacles. One takes the lead and the second struggles to cross over the plastic bottles, but also finishes. Both go to bite the rag the soldier holds.
“Very, very good, sons! Very good, boys,” he repeats while dragging the puppies as they maintain their grasp on the rag for several moments.
Camacho explains that the puppies are known by a number until they are three months old, when they are given a proper name. Each year, the center gives names according to a single letter of the alphabet. In 2023, that letter is “F.”
Febo, Frodo, Fósil, Forraje and Fido are some of this year’s names.
The basic training ends when the puppies are 4 months old. Then, they move to other military units to become specialists in detection of drugs or explosive, in search and rescue or in protection and security.
The current government of Mexico’s President Andrés Manuel López Obrador has relied heavily on the armed forces for various initiatives, from public safety to the building of airports and a tourist train line. And K-9 units have been a key element of some of the military’s activities, like the detection of drugs.
Col. Camacho said that some dogs born at the center have been trained to detect fentanyl, a synthetic opioid trafficked by Mexican cartels that has been blamed for about 70,000 overdose deaths per year in the United States.
That kind of specialized training happens elsewhere, but the colonel says it builds on his center’s basic training by using “attractor” objects but having them impregnated with the scent of what the dogs need to track, such as a drug.
Dogs retire from their military service after eight years, Camacho says.
Many of the dogs have become unsung heroes of missions in Mexico and abroad. Occasionally they become publicly known, like a German Shepherd named Proteo who was part of a rescue team sent in February to Turkey after a 7.8-magnitude earthquake that killed more than 40,000 people.
Proteo died during the search for survivors of the quake. A statue of him now stands at the center.
Another dog that made headlines in Mexico and abroad was a yellow Labrador retriever rescue dog named Frida. The Navy dog gained fame in the days following Mexico’s Sept. 19, 2017, earthquake that left more than 300 dead in the capital. She retired in 2019 and died in 2022.
Col. Camacho said that the dogs have a symbiotic relationship with their handlers during their working life in the military.
“The dog uses us to survive, but we also use the dog to do a job,” he said. “So it’s a coordinated work where we both get a benefit.”
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