Cancer-Sniffing Canines Are Nearly Foolproof

After smelling more than 650 patients' urine, two dogs have demonstrated 98% accuracy in detecting prostate cancer. With about 220 million olfactory cells in their snouts, some canines are able to whiff chemicals released by tumors, Bloomberg reports. The research, presented yesterday at the annual meeting of the American Urological Association in Orlando, Florida, may help scientists develop a robotic nose that can detect prostate cancer with the same accuracy. Current blood tests used to diagnose the disease are suspected to have a false positive rate as high as 80%.

For more on man's best friend, see the Science News team's latest coverage of doggy science.

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