Assertion: pandemic's effect | /r/HasProperty | severe allergic reaction
Facets:
value: to either the virus material
type: OTHER
value: to residues from the hen eggs
type: TRANSITIVE-OBJECT
Source sentences:
text: The most dangerous adverse effect is a severe allergic reaction to either the virus material itself or residues from the hen eggs used to grow the influenza; however, these reactions are extremely rare.