herpes vs herpes virus

herpes and herpes virus both are nouns.

Word	Noun	Adjective	Verb	Adverb
herpes	Yes	No	No	No
herpes virus	Yes	No	No	No

As nouns, herpes and herpes virus are synonyms defined as:

herpes and herpes virus: any of the animal viruses that cause painful blisters on the skin

herpes (noun)	herpes virus (noun)
any of the animal viruses that cause painful blisters on the skin	any of the animal viruses that cause painful blisters on the skin
viral diseases causing eruptions of the skin or mucous membrane