The Science of the Sniff: Why Dogs Are Great Disease Detectors
b'In November 2016, a team of scientists from the Medical Research Council in Gambia visited primary schools armed with hundreds of beige-colored nylon socks. Handing them out to children there aged five to 14, the researchers instructed them to wear the socks overnight, only taking them off if they were washing their feet for prayer.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'