The evidence just keeps mounting that ordinary dogs can be trained to use their noses to detect various kinds of cancer with near-perfect accuracy — better than any standard test for the disease.
In the latest study, an eight-year-old black Labrador was 97 percent accurate in nosing out colon cancer when she was asked to choose among watery stool samples doctors collected from 185 patients with and without cancer.
The dog was almost as good at spotting cancer in breath samples. Breast, stomach and prostate cancer samples were also detected.
(READ the story by Richard Knox at NPR)
Cancer Sniffing Dog Saves Woman