About: http://webisa.webdatacommons.org/139673423

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 similar situation existed in Europe 100 years ago and then gradually, diseases such as the plague disappeared on their own, as the living conditions ameliorated. (And it was well before the introduction of mass vaccinations).
http://www.w3.org/ns/prov#wasQuotedFrom	isaiadis.com