See related story: Custom Bug Repellent: Body Odor
Slideshow: Custom Bug Repellent: Body Odor
In Scotland, swarms of blood-sucking insects make life miserable for picnickers and outdoorspeople. A team of researchers wants to take the human sweat scents that attract the most bugs and make a repellent that works. Andrew Heavens reports from Edinburgh.
.Med & Vet Entomology

