About: http://webisa.webdatacommons.org/120618326

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	Infants are particularly susceptible to the disease because of less developed immunity but if they survive repeated infections over many years, a degree of protective but non-sterilising immunity can be attained by several years of age.
http://www.w3.org/ns/prov#wasQuotedFrom	pubmedcentralcanada.ca