About: http://webisa.webdatacommons.org/55790790

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	Question A: Declining to be vaccinated against contagious diseases such as measles imposes costs on other people, which is a negative externality.
http://www.w3.org/ns/prov#wasQuotedFrom	igmchicago.org