About: http://webisa.webdatacommons.org/197257404

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	Tests conducted earlier in the United States had been negative.Several types of tests are used to detect the presence of the misfolded proteins, prions, that scientists believe cause mad cow disease.
http://www.w3.org/ns/prov#wasQuotedFrom	vegsource.com