Assertion: smallpox's virus | /r/Synonym | the variola virus
Facets:
Source sentences:
text: Smallpox is an acute, contagious, and sometimes fatal disease caused by infection with a virus known as the variola virus.
text: Smallpox was an infection that was caused by the virus called variola virus.
text: Smallpox is a serious, contagious, and sometimes fatal infectious disease caused by a virus called the variola virus.
text: Smallpox is an acute, communicable disease caused by a virus known as the variola virus.