The developed canine sense of smell may be a useful tool for early diagnosis of various cancers, according to an article published in the journal "Integrative Cancer Therapies."
The authors claim that you can train dogs to detect lung cancer and breast cancer in early stages, sniffing the breath samples of patients, because tumor cells release molecules different than healthy cells that dogs can detect. The study
five dogs trained them to respond differently to breath samples from cancer patients and healthy after a period of intense but relatively short training. The samples used in study came from 55 patients with lung cancer, 31 with breast cancer and 83 healthy controls. The animals' ability to distinguish the samples was 90%.
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