Resumen de The nose knows
Bestic examines how dogs that can sniff out cancer are more than urban legend. Diagnosing cancer is a hit-and-miss affair. Often the symptoms that prompt a visit to the doctor only emerge when a cancer is relatively advanced. Screening only works for some types of cancer, and diagnostic tools are often unreliable or invasive. Better detection methods are badly needed. Now it seems that dogs could catch a whiff of cancer at an early stage, because of small chemical changes that take place within diseased cells. These chemical signatures are excreted in breath and urine, which dogs like Ollie, at the Medical Detection Dogs charity in Milton Keynes UK are being trained to detect
