poliovirus vs enterovirus

poliovirus and enterovirus both are nouns.

Word	Noun	Adjective	Verb	Adverb
poliovirus	Yes	No	No	No
enterovirus	Yes	No	No	No

As nouns, enterovirus is a hypernym of poliovirus; that is, enterovirus is a word with a broader meaning than poliovirus:

poliovirus: the virus causing poliomyelitis
enterovirus: any of a group of picornaviruses that infect the gastrointestinal tract and can spread to other areas (especially the nervous system)

poliovirus (noun)	enterovirus (noun)
the virus causing poliomyelitis	any of a group of picornaviruses that infect the gastrointestinal tract and can spread to other areas (especially the nervous system)