Assertion: smallpox's virus | /r/Causes | fever
Facets:
Source sentences:
text: The virus was highly contagious, causing a fever and distinctive, progressive rash.
text: The vaccinia virus may cause rash, fever, and head and body aches.
text: The vaccinia virus may cause rash, fever, and head and body aches.
text: The vaccinia virus may cause rash, fever, and head and body aches.