Assertion: bird flu | /r/HasProperty | avian influenza
Facets:
Source sentences:
text: Bird flu (avian influenza) is a disease caused by strains of influenza virus that primarily affects birds.
text: Bird flu, also known as avian flu or avian influenza, is an infectious disease caused by any of the influenza type
text: Bird flu, also known as avian flu or avian influenza, is an infectious disease caused by any of the influenza type
text: Note: bird flu (avian influenza) is different and is more serious.