prevalent vs prevalence

prevalent is not a noun while prevalence is a noun.

Word	Noun	Adjective	Verb	Adverb
prevalent	No	Yes	No	No
prevalence	Yes	No	No	No

prevalent (noun)	prevalence (noun)
	the quality of prevailing generally; being widespread
	a superiority in numbers or amount
	(epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population

prevalent (adjective)	prevalence (adjective)
most frequent or common