<http://schema.org/description>
"U.S. health officials say hand sanitizers are not effective against norovirus but they advise washing hands frequently and thoroughly with soap and water."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Health_News/2013/01/28/Hand-sanitizers-wont-kill-norovirus/UPI-64081359407287/>