About: http://webisa.webdatacommons.org/75167732

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	These systems therefore monitor school and work absenteeism, sales of over-the-counter medications, illness- related 9-1-1 calls, and other patterns that suggest an outbreak.
http://www.w3.org/ns/prov#wasQuotedFrom	nas.edu