Assertion: viral pneumonia's system | /r/HasProperty | weak
Facets:
value: especially
type: DEGREE
Source sentences:
text: Cytomegalovirus Pneumonia is an opportunistic infection; hence, avoiding CMV virus exposure is very important, especially when the immune system is weak
text: Viral pneumonias have a weak immune system due to illnesses such as HIV, AIDS, and autoimmune disease.