Assertion: pneumonia's cause | /r/HasProperty | influenza
Facets:
value: in some of these cases
type: OTHER
Source sentences:
text: The most common viral causes are influenza, parainfluenza, human respiratory syncytial virus, human metapneumovirus and adenovirus.
text: The most common cause of viral pneumonia in adults is the influenza virus.
text: In some of these cases, the primary or underlying cause is a viral infection such as influenza, parainfluenza, or canine adenovirus type-2.