Assertion: polio | /r/HasProperty | spread through an infected person's saliva
Facets:
Source sentences:
text: Polio can also be spread through an infected person's saliva (19) and there is evidence of passive transmission of the disease by flies (20).
text: Polio can also be spread through an infected person's saliva (19) and there is evidence of passive transmission of the disease by flies (20).