Assertion: smallpox | /r/HasProperty | eradicated by massive international search
Facets:
value: for outbreaks
type: PURPOSE
Source sentences:
text: Smallpox was eradicated by a massive international search for outbreaks, backed up with a vaccination program, starting in 1967.
text: Smallpox was eradicated by a massive international search for outbreaks, backed up with a vaccination program, starting in 1967.