Assertion: vaccine's risk | /r/HasProperty | outweighed by the risk
Facets:
value: heavily
type: DEGREE
Source sentences:
text: Because the disease had, until the previous decade, paralyzed thousands of American children every year—it peaked in the United States in 1952 with some 21,000 paralytic cases—the known risk of the vaccine was heavily outweighed by the risk of going unvaccinated.