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[1]
Can dogs sniff cancer? AI joins the hunt in India
Bengaluru (India) (AFP) - When rescue dog Chloe is not tumbling across the grass on a farm outside India's tech capital Bengaluru, she is learning to sniff human breath for cancer with a little help from AI. Fitted with a 3D-printed helmet and harness packed with sensors, Chloe is part of experimental efforts to use dogs' extraordinary sense of smell to develop a non-invasive test for the disease. A growing body of global research suggests dogs can be trained to detect cancer and other human illnesses, from Parkinson's to Covid-19. The Bengaluru-based startup Dognosis is using AI to analyse dogs' brain activity, respiration and body language -- turning their reaction to scent into data. "In an hour, they can do thousands of sniffs," co-founder Akash Kulgod, 26, told AFP. "Each sniff can evaluate a sample." Dognosis hopes to launch commercially next year, which it says would make it the third company of its kind, after firms from Germany and Israel. Early detection can make a crucial difference to cancer survival rates, but in India many patients are diagnosed only after the disease has advanced. Dog sniffs could provide an easy and affordable first layer of screening to be deployed at scale, finding potential cases for further testing. As it chases commercial approval, Dognosis -- backed by venture-capital firms including Accel India -- is collaborating with government medical institutions for its research. Chloe, a Labrador mix, is one of 15 dogs being coached by the startup, clad in customised data-gathering helmets. "It's like a doggy 'Iron Man' suit," said Kulgod, who comes from a family of doctors and studied cognitive science at the University of California, Berkeley. 'Promising' study Research suggests diseases can alter the chemicals released by the body, creating distinctive odours. Dogs have around 300 million scent receptors, compared to about five million in humans. The testing method is simple: a patient breathes into a cotton mask for about 10 minutes, and the mask is then sealed in a bag and taken to the lab. Patients do not meet the dogs. A recent Dognosis study of more than 1,500 participants, involving six hospitals in Karnataka state, was published in the Journal of Clinical Oncology. The company said it achieved an accuracy rate of more than 90 percent across seven major types of cancer, and now plans to test in real-world programmes. Cancer specialists in Bengaluru independent of the project voiced cautious optimism. "The study is promising, as an early signal," said Santhosh Kumar Devadas, head of oncology at Ramaiah Memorial Hospital. "But they need to do the study with a much larger group before we make any definitive conclusions." Neelesh Reddy, a senior consultant oncologist at Manipal Hospitals, told AFP that "only time will tell how this technology will be useful to the actual patients". Dog 'work-life balance' India has described cancer as a major public health concern, saying one in nine of its 1.4 billion people are likely to develop the disease. Dognosis says it aims to improve "proactive and preventative medicine" while boosting "human-canine communication". Most of the dogs are beagles, along with some Malinois and Shepherd mixes, brought on board through adoption or legal breeders. But only the best are selected, said Kulgod. The dog team individually lists each animal on the company website as an official "sniffer", alongside their photographs. All have a great "work-life balance", with work time limited to around 30-45 minutes a day, he added. At a centre called "Sniffspace", dogs test human samples on platforms equipped with automatic feeders dispensing dog treats. Kulgod's co-founder Itamar Bitan, 28, who spent four years in an Israeli special-forces canine unit, said the dogs were trained using "positive reinforcement" to detect a "specific funky smell" for a reward. "Some of the dogs run directly to the feeder expecting rewards, some dogs freeze, some dogs will scratch the sample with excitement," Bitan said. "But, as long as the machine that learns how the dogs react to the sample is very consistent... we don't really mind."
[2]
dogs sniff cancer: Can dogs sniff cancer? AI joins the hunt in India
When rescue dog Chloe is not tumbling across the grass on a farm outside India's tech capital Bengaluru, she is learning to sniff human breath for cancer with a little help from AI. Fitted with a 3D-printed helmet and harness packed with sensors, Chloe is part of experimental efforts to use dogs' extraordinary sense of smell to develop a non-invasive test for the disease. - Dog 'work-life balance' - India has described cancer as a major public health concern, saying one in nine of its 1.4 billion people are likely to develop the disease. When rescue dog Chloe is not tumbling across the grass on a farm outside India's tech capital Bengaluru, she is learning to sniff human breath for cancer with a little help from AI. Fitted with a 3D-printed helmet and harness packed with sensors, Chloe is part of experimental efforts to use dogs' extraordinary sense of smell to develop a non-invasive test for the disease. A growing body of global research suggests dogs can be trained to detect cancer and other human illnesses, from Parkinson's to Covid-19. The Bengaluru-based startup Dognosis is using AI to analyse dogs' brain activity, respiration and body language -- turning their reaction to scent into data. "In an hour, they can do thousands of sniffs," co-founder Akash Kulgod, 26, told AFP. "Each sniff can evaluate a sample." Dognosis hopes to launch commercially next year, which it says would make it the third company of its kind, after firms from Germany and Israel. Early detection can make a crucial difference to cancer survival rates, but in India many patients are diagnosed only after the disease has advanced. Dog sniffs could provide an easy and affordable first layer of screening to be deployed at scale, finding potential cases for further testing. As it chases commercial approval, Dognosis -- backed by venture-capital firms including Accel India -- is collaborating with government medical institutions for its research. Chloe, a Labrador mix, is one of 15 dogs being coached by the startup, clad in customised data-gathering helmets. "It's like a doggy 'Iron Man' suit," said Kulgod, who comes from a family of doctors and studied cognitive science at the University of California, Berkeley. - 'Promising' study - Research suggests diseases can alter the chemicals released by the body, creating distinctive odours. Dogs have around 300 million scent receptors, compared to about five million in humans. The testing method is simple: a patient breathes into a cotton mask for about 10 minutes, and the mask is then sealed in a bag and taken to the lab. Patients do not meet the dogs. A recent Dognosis study of more than 1,500 participants, involving six hospitals in Karnataka state, was published in the Journal of Clinical Oncology. The company said it achieved an accuracy rate of more than 90 percent across seven major types of cancer, and now plans to test in real-world programmes. Cancer specialists in Bengaluru independent of the project voiced cautious optimism. "The study is promising, as an early signal," said Santhosh Kumar Devadas, head of oncology at Ramaiah Memorial Hospital. "But they need to do the study with a much larger group before we make any definitive conclusions." Neelesh Reddy, a senior consultant oncologist at Manipal Hospitals, told AFP that "only time will tell how this technology will be useful to the actual patients". - Dog 'work-life balance' - India has described cancer as a major public health concern, saying one in nine of its 1.4 billion people are likely to develop the disease. Dognosis says it aims to improve "proactive and preventative medicine" while boosting "human-canine communication". Most of the dogs are beagles, along with some Malinois and Shepherd mixes, brought on board through adoption or legal breeders. But only the best are selected, said Kulgod. The dog team individually lists each animal on the company website as an official "sniffer", alongside their photographs. All have a great "work-life balance", with work time limited to around 30-45 minutes a day, he added. At a centre called "Sniffspace", dogs test human samples on platforms equipped with automatic feeders dispensing dog treats. Kulgod's co-founder Itamar Bitan, 28, who spent four years in an Israeli special-forces canine unit, said the dogs were trained using "positive reinforcement" to detect a "specific funky smell" for a reward. "Some of the dogs run directly to the feeder expecting rewards, some dogs freeze, some dogs will scratch the sample with excitement," Bitan said. "But, as long as the machine that learns how the dogs react to the sample is very consistent... we don't really mind."
[3]
Can dogs sniff cancer? AI joins the hunt in India.
Bengaluru, India - When rescue dog Chloe is not tumbling across the grass on a farm outside India's tech capital Bengaluru, she is learning to sniff human breath for cancer with a little help from artificial intelligence. Fitted with a 3D-printed helmet and harness packed with sensors, Chloe is part of experimental efforts to use dogs' extraordinary sense of smell to develop a noninvasive test for the disease. A growing body of global research suggests dogs can be trained to detect cancer and other human illnesses, from Parkinson's to COVID-19. The Bengaluru-based startup Dognosis is using AI to analyze dogs' brain activity, respiration and body language -- turning their reaction to scent into data. "In an hour, they can do thousands of sniffs," said co-founder Akash Kulgod, 26. "Each sniff can evaluate a sample." Dognosis hopes to launch commercially next year, which it says would make it the third company of its kind, after firms from Germany and Israel. Early detection can make a crucial difference to cancer survival rates, but in India, many patients are diagnosed only after the disease has advanced. Dog sniffs could provide an easy and affordable first layer of screening to be deployed at scale, finding potential cases for further testing. As it chases commercial approval, Dognosis -- backed by venture-capital firms including Accel India -- is collaborating with government medical institutions for its research. Chloe, a Labrador mix, is one of 15 dogs being coached by the startup, clad in customized data-gathering helmets. "It's like a doggy 'Iron Man' suit," said Kulgod, who comes from a family of doctors and studied cognitive science at the University of California, Berkeley. Research suggests diseases can alter the chemicals released by the body, creating distinctive odors. Dogs have around 300 million scent receptors, compared to about 5 million in humans. The testing method is simple: A patient breathes into a cotton mask for about 10 minutes, and the mask is then sealed in a bag and taken to the lab. Patients do not meet the dogs. A recent Dognosis study of more than 1,500 participants, involving six hospitals in Karnataka state, was published in the Journal of Clinical Oncology. The company said it achieved an accuracy rate of more than 90% across seven major types of cancer and now plans to test in real-world programs. Cancer specialists in Bengaluru independent of the project voiced cautious optimism. "The study is promising, as an early signal," said Santhosh Kumar Devadas, head of oncology at Ramaiah Memorial Hospital. "But they need to do the study with a much larger group before we make any definitive conclusions." Neelesh Reddy, a senior consultant oncologist at Manipal Hospitals, said that "only time will tell how this technology will be useful to the actual patients." India has described cancer as a major public health concern, saying one in nine of its 1.4 billion people are likely to develop the disease. Dognosis says it aims to improve "proactive and preventative medicine" while boosting "human-canine communication." Most of the dogs are beagles, along with some Malinois and Shepherd mixes, brought on board through adoption or legal breeders. But only the best are selected, said Kulgod. The dog team individually lists each animal on the company website as an official "sniffer," alongside their photographs. All have a great "work-life balance," with work time limited to around 30 to 45 minutes a day, he added. At a center called "Sniffspace," dogs test human samples on platforms equipped with automatic feeders dispensing dog treats. Kulgod's co-founder Itamar Bitan, 28, who spent four years in an Israeli special-forces canine unit, said the dogs were trained using "positive reinforcement" to detect a "specific funky smell" for a reward. "Some of the dogs run directly to the feeder expecting rewards, some dogs freeze, some dogs will scratch the sample with excitement," Bitan said. "But, as long as the machine that learns how the dogs react to the sample is very consistent ... we don't really mind."
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Bengaluru-based startup Dognosis combines canine olfactory abilities with AI to create a non-invasive cancer screening tool. Using 3D-printed helmets with sensors, 15 dogs analyze human breath samples with over 90% accuracy across seven major cancer types, backed by Accel India and collaborating with government medical institutions.

Dognosis, a Bengaluru-based startup, is pioneering AI-assisted cancer detection by equipping dogs with 3D-printed helmets with sensors to analyze human breath samples
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. The company uses artificial intelligence to analyze dogs' brain activity, respiration and body language, converting their reaction to scent into actionable data. Co-founder Akash Kulgod, 26, who studied cognitive science at the University of California, Berkeley, explains that dogs can perform thousands of sniffs per hour, with each sniff evaluating a sample2
. The startup employs 15 dogs, including beagles, Malinois and Shepherd mixes, all working in customized data-gathering helmets that Kulgod describes as a doggy "Iron Man" suit.The non-invasive cancer screening tool addresses a critical gap in India's healthcare system where early cancer detection in India remains challenging. One in nine of India's 1.4 billion people are likely to develop cancer, making it a major public health concern
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. Many patients receive late diagnoses only after the disease has advanced, significantly reducing survival rates. The testing method is straightforward: patients breathe into a cotton mask for approximately 10 minutes, which is then sealed and transported to the lab without any direct contact between patients and dogs. This approach could provide an easy and affordable first layer of screening to be deployed at scale, identifying potential cases for further testing.Dognosis recently published a study of more than 1,500 participants involving six hospitals in Karnataka state in the Journal of Clinical Oncology. The company achieved an accuracy rate of more than 90% across seven major types of cancer
1
. This performance is built on dogs' extraordinary olfactory capabilities—they possess around 300 million scent receptors compared to about 5 million in humans. Research indicates diseases can alter the chemicals released by the body, creating distinctive odors that trained dogs can detect. The startup, backed by venture-capital firms including Accel India, is collaborating with government medical institutions for its research as it pursues commercial approval.Cancer specialists in Bengaluru independent of the project have expressed cautious optimism about the technology. Santhosh Kumar Devadas, head of oncology at Ramaiah Memorial Hospital, stated the study is "promising, as an early signal," but emphasized the need for studies with much larger groups before making definitive conclusions
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. Neelesh Reddy, a senior consultant oncologist at Manipal Hospitals, noted that "only time will tell how this technology will be useful to the actual patients." Dognosis hopes to launch commercially next year, which would make it the third company of its kind globally, after firms from Germany and Israel.Related Stories
At a facility called "Sniffspace," dogs test human breath samples on platforms equipped with automatic feeders dispensing treats. Co-founder Itamar Bitan, 28, who spent four years in an Israeli special-forces canine unit, explains the dogs are trained using positive reinforcement to detect a "specific funky smell" for a reward
3
. Dogs exhibit varied reactions—some run directly to the feeder expecting rewards, some freeze, while others scratch the sample with excitement. The AI-assisted method to detect cancer relies on the machine learning system's ability to consistently interpret these diverse canine behaviors. Dognosis maintains a strong focus on work-life balance for its canine team, limiting work time to around 30-45 minutes daily, and lists each dog as an official "sniffer" on the company website alongside their photographs.Dognosis aims to advance proactive and preventative medicine while enhancing human-canine communication. The low-cost screening approach could significantly impact public health in India by enabling mass screening programs that identify cancer cases earlier when treatment is most effective. The company now plans to test the technology in real-world programs to validate its clinical utility beyond controlled research settings. If successful at scale, this AI-assisted cancer detection system could serve as a model for other countries facing similar challenges with late diagnoses and limited access to expensive screening technologies. The convergence of canine biology, sensor technology, and machine learning represents a novel approach to addressing one of healthcare's most persistent challenges: detecting cancer before it becomes life-threatening.
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