variola minor virus vs variola minor

variola minor virus and variola minor both are nouns.

Word	Noun	Adjective	Verb	Adverb
variola minor virus	Yes	No	No	No
variola minor	Yes	No	No	No

As nouns, variola minor virus and variola minor are synonyms defined as:

variola minor virus and variola minor: a type of smallpox virus that has a fatality rate of about 1 percent

variola minor virus (noun)	variola minor (noun)
a type of smallpox virus that has a fatality rate of about 1 percent	a type of smallpox virus that has a fatality rate of about 1 percent
	a mild form of smallpox caused by a less virulent form of the virus