Assertion: vaccine's strain | /r/HasProperty | attenuated
Facets:
value: enough to be considered
type: OTHER
Source sentences:
text: They noted a glycerin-bile-potato mixture grew bacilli that seemed less virulent, and changed the course of their research to see if repeated subculturing would produce a strain that was attenuated enough to be considered for use as a vaccine.
text: These strains are therefore called attenuated strains.