<http://schema.org/description>
"U.S. scientists theorize that altered migration patterns of birds due to La Nina weather patterns in the equatorial Pacific promote new strains of influenza."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Health_News/2012/01/16/La-Nina-weather-precedes-flu-pandemics/UPI-53511326767923/>