Using dogs’ noses to sniff out disease

ASK THE DOCTORS

Dear Doctors: I read your column about the scent of skin secretion changes in Parkinson’s disease. A couple of years ago, I read about training canines to smell and detect lung cancer. Has there been additional work done in training canines for disease detection?

Dear Reader: Your question leads us to the fascinating and remarkable canine nose. Researchers guess that a dog’s sense of…