Assertion: vaccine's use | /r/HasSubevent | a more than 90% decrease
Facets:
value: between 1980
type: TEMPORAL
value: in number of cases
type: OTHER
value: between 2000
type: TEMPORAL
value: globally
type: OTHER
Source sentences:
text: Its use has resulted in a more than 90% decrease in number of cases globally between 1980 and 2000.