Just read in the November,2011 Readers' Digest where dogs were tested for their ability to sniff out cancers.Five dogs were used in a study in the US and Poland. There was a control group who were healthy and 86 lung and breast cancer patients. The dogs' accuracy levels ranged from 88% to 97%.I n other studies two German Shepherds,an Australian Shepherd and a Labrador correctly sniffed out lung cancer in 71% of 220 patients.Dogs have also been able to detect colon cancer.
There is more about detector dogs used for people with other life threatening conditions in this article.
