Living 15 Thousand By Indy Staff Thu Mar 01, 2007 | 12:00pm Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print Add to Favorites 15 Thousand The number of germs deposited on a handkerchief after only 30 seconds of use. source: health.discovery.com/.