About: http://webisa.webdatacommons.org/293490670

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	In epidemiology there is a concept known as ???herd immunity.??? If enough of the population is vaccinated, epidemics can???t occur.
http://www.w3.org/ns/prov#wasQuotedFrom	bobkrumm.com