In a quiet corner of the animal shelter, a man named John arrived with the intention of adopting a Pit Bull named Max. Max, a resilient and gentle soul, had been through a tumultuous journey before finding refuge in the shelter. His striking features and warm brown eyes had caught John’s attention through an online adoption profile.
As John entered the shelter, a wave of anticipation mixed with nervousness washed over him. He had read about Max’s past struggles and was determined to provide him with a loving home. The shelter staff greeted John warmly, leading him to Max’s enclosure.
Upon reaching Max’s kennel, John was met with an unexpected sight. Max, a robust and muscular Pit Bull, was not alone. Nestled beside him was a smaller, frail dog with expressive eyes that mirrored Max’s own kindness. The bond between the two was palpable, and it became evident that they were inseparable companions.
Curiosity and compassion overcame John as he inquired about the smaller dog’s story. The shelter staff explained that the smaller dog, named Buddy, had been rescued alongside Max from an abusive environment. The two had formed an unbreakable bond during their time at the shelter, providing each other comfort and solace.
As John entered the shelter, a wave of anticipation mixed with nervousness washed over him. He had read about Max’s past struggles and was determined to provide him with a loving home. The shelter staff greeted John warmly, leading him to Max’s enclosure.
Upon reaching Max’s kennel, John was met with an unexpected sight. Max, a robust and muscular Pit Bull, was not alone. Nestled beside him was a smaller, frail dog with expressive eyes that mirrored Max’s own kindness. The bond between the two was palpable, and it became evident that they were inseparable companions.
Curiosity and compassion overcame John as he inquired about the smaller dog’s story. The shelter staff explained that the smaller dog, named Buddy, had been rescued alongside Max from an abusive environment. The two had formed an unbreakable bond during their time at the shelter, providing each other comfort and solace.
As John observed the dynamic between Max and Buddy, a realization dawned on him. Adopting Max meant adopting Buddy as well, for their connection was a testament to the strength of their companionship. Undeterred by the unexpected twist, John decided to open his heart and home to both dogs, acknowledging the profound impact they had on each other.
The adoption process unfolded with paperwork and joyful tail wags. Max and Buddy, now aware that their lives were about to take a positive turn, emanated gratitude in their every glance. As they left the shelter, John could feel the gratitude and loyalty radiating from the two dogs, and a sense of fulfillment settled within him.
Back at John’s home, Max and Buddy seamlessly integrated into their new surroundings. It became evident that their bond wasn’t just born out of shared adversity but was a testament to the resilience of love and the healing power of companionship. Max, initially adopted for his strength and protectiveness, showed a tender and nurturing side when it came to looking out for Buddy.
In the weeks that followed, John witnessed the transformation of the two dogs. Max’s once guarded demeanor softened, and Buddy, once timid and fearful, blossomed under the reassuring presence of his loyal friend. Their story became a beacon of hope for the shelter staff and an inspiration for others considering pet adoption.
The narrative of Max and Buddy demonstrated that adoption is not merely a one-way act of kindness; it is a reciprocal exchange of love and trust. John, thinking he was saving Max, found himself equally saved by the unwavering friendship of these two resilient souls. The once broken spirits of Max and Buddy mended each other, creating a harmonious melody of healing in the quiet corners of John’s home.
Dogs have nose for COVID-19, studies show. Why aren’t they used for testing?
As the availability of COVID-19 tests dwindle across Canada, another option to detect the virus in the form of a furry friend may be the next best thing.
Multiple studies show that dogs can be more effective, faster and potentially less expensive than the current tests on the market.
The research has grown since 2020, with University of California Santa Barbara professor Tommy Dickey finding the collective research shows trained scent dogs are “as effective and often more effective” than both the rapid antigen tests many people keep in their homes, and even the PCR tests deployed at clinics and hospitals.
But even with studies showing their effectiveness, COVID-19-detecting dogs are deployed only in certain jurisdictions in various countries.
One such place is the Canines for Care program at Vancouver Coastal Health (VCH), which started looking into the possibility of training dogs to detect COVID-19 in early 2021.
Dr. Marthe Charles, division head of medical microbiology and infection prevention and control at VCH, said the idea stemmed from the early reliance on laboratory testing.
“I think there was a will from public health at the time and also from the various levels of government to try to find a way that was fast, accurate and non-invasive to be able to detect and train as many people as possible,” Charles told Global News in an interview.
Three dogs — two Labrador retrievers and an English springer spaniel — were brought in for training. The dogs were exposed to items such as masks that were worn by patients either negative or positive for the virus. This trained the dogs to recognize what is and is not COVID-19.
Charles said the dogs were trained since being puppies to associate the scent of COVID-19 with food and were rewarded each time they correctly detected a positive case of the virus.
“So from early on in their lives, they’ve associated the scent of a case of COVID to a rewarding scent,” she explained.
This reward method is not just used by VCM. It was also used with a group of dogs sourced in early 2021 for a French study, trained at detection using toys — usually tennis balls — as rewards.
Dr. Carla Simon, owner of Hunter’s Heart Scent Detection Canines in Calgary, said this method of training dogs is common. By using rewards, it can help motivate them to find the scent.
“We would pair, let’s say, the sweat samples with COVID, with their reward, and they notice that every time they find their reward, there’s that special smell,” she explained. “We just have to make it rewarding for the dog.”
She added, however, that the dog chooses the reward so trainers can ensure the canines “show up every day and want to do their job.”
Earlier this month, Dickey along with Heather Junqueira of BioScent, Inc. gathered several peer-reviewed studies into a review that was published in the Journal of Osteopathic Medicine. Dickey said the number of peer-reviewed studies over the past few years went from four to 29, incorporating the work of more than 400 scientists from more than 30 countries and 31,000 samples.
The review noted the effectiveness of dogs’ ability to detect COVID-19 comes down to their noses.
“The nose is not like humans,” Simon said. “It’s massively different, orders of magnitude different, and they can detect things without us being able to smell them.”
Humans have about five to six million olfactory receptors in their noses, while dogs have hundreds of millions. One-third of their brain is devoted to the interpretation of smell — something only five per cent of a human’s brain is committed to, according to Dickey’s review.
The study found dogs’ noses may even be able to detect pre-symptomatic COVID-19 cases, or even those who will develop symptoms later.
Dickey told us in an interview that this could help limit or stop the virus from spreading.
“The longer the wait is between your test and your result, that’s a latent period,” he said. “During that time you’re running around spreading COVID and you don’t know it. The dogs with a direct sniff will be done in seconds.”
Many of the studies conducted, including the work at VCH through the Canine for Care program, have shown dogs’ ability to detect the disease correctly with a success rate of more than 90 per cent. Additionally, the studies also showed a high speed at which the dogs could identify cases. In one study in Thailand, researchers reported the dogs had gone through thousands of samples in just a few weeks.
“The dogs take only one to two seconds to detect the virus per sample. Once they detect a patient, they will sit down,” said Chulalongkorn University professor Kaywalee Chatdarong, who led the 2021 project. “This takes only one to two seconds. Within one minute, they can manage to go through 60 samples.”
Even though the research suggested deploying scent-detection dogs could also be less expensive than rapid or PCR tests, Charles cautioned the logistics that go into training the dog is where it becomes “more prohibitive.”
In VCH’s case, training of the dogs included the medical microbiology lab to provide samples for use, working with infection prevention teams and control nurses, and if a dog identifies an area of concern, cleaning services may need to be utilized. And when it comes to rolling out testing using the dogs, enough staffing is needed for mass screening.
Despite this, while Charles says deploying the dogs widely could be difficult due to staffing and training, they are still one of several tools that can be used in COVID-19 detection.
“I think the way to see those dogs from my perspective is really like another tool in the toolbox and trying to prevent further transmission of pathogen of concern,” she said.
Dickey and Junqueira say dogs should have a place in “serious diagnostic methodology” including in helping should the world face a future pandemic.
Leave a Reply