About: http://webisa.webdatacommons.org/166102920

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	This is why before vaccines were developed, childhood diseases such as measles and mumps occurred only once in a lifetime.
http://www.w3.org/ns/prov#wasQuotedFrom	bio-medicine.org