About: http://webisa.webdatacommons.org/203949503

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	The United States and other wealthy countries have switched back to using only injected polio vaccine, which is made of inactivated or killed virus, for routine childhood immunizations after eradicating the disease within their borders.
http://www.w3.org/ns/prov#wasQuotedFrom	recordonline.com