<http://schema.org/caption>
"The number of flu cases in Oklahoma went up from week to week, and the amount of available vaccines went down. Several counties in central Oklahoma are either low on adult doses or out altogether."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.koco.com/article/quantity-of-flu-vaccine-varies-across-state/3788839>