Assertion: pneumonia's cause | /r/HasProperty | viral
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Atypical pneumonia can also have a fungal, protozoan or viral cause.
text: Influenza, also known as the flu, can be accompanied by pneumonia, which is often referred to as “secondary bacterial pneumonia,” though the cause can be viral as well.
text: The cause of pneumonia can be viral, bacterial, mycobacterial, fungal, or even non-infective irritants.
text: The cause of CAP is often viral, but bacteria are also important causes of CAP.