virulence vs hostility

virulence and hostility both are nouns.

Word	Noun	Adjective	Verb	Adverb
virulence	Yes	No	No	No
hostility	Yes	No	No	No

As nouns, hostility is a hypernym of virulence; that is, hostility is a word with a broader meaning than virulence:

Other hypernyms of virulence include ill will.

virulence (noun)	hostility (noun)
extreme harmfulness (as the capacity of a microorganism to cause disease)	violent action that is hostile and usually unprovoked
extreme hostility	a hostile (very unfriendly) disposition
	the feeling of a hostile person
	a state of deep-seated ill-will