About: http://webisa.webdatacommons.org/355978255

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	A 1989 study in the state of Washington showed that hepatitis A occurs in cyclical epidemics, in much the same pattern as other infectious diseases such as polio and measles.
http://www.w3.org/ns/prov#wasQuotedFrom	vhpb.org