Assertion: chickenpox | /r/HasProperty | prevented by immunization
Facets:
value: based on the oka vzv strain
type: CAUSE
Source sentences:
text: Varicella can be prevented by immunization.
text: Chickenpox can be prevented by immunization.
text: Varicella can be prevented by immunization and multiple vaccine formulations of the live attenuated vaccine, based on the Oka VZV strain, have been available since 1974.