About: http://webisa.webdatacommons.org/83590977

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	As people age, their immune systems tend to weaken, and other health problems make them more prone to infection.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org