<http://schema.org/alternativeHeadline>
"Seven percent of outbreaks could be traced back to a single food, with the most common being leafy vegetables, fruits and mollusks such as oysters."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/family/protection-safety/stories/restaurants-are-most-common-source-for-foodborne-norovirus>