endemic disease vs disease

endemic disease and disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
endemic disease	Yes	No	No	No
disease	Yes	No	No	No

As nouns, disease is a hypernym of endemic disease; that is, disease is a word with a broader meaning than endemic disease:

endemic disease: a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location
disease: an impairment of health or a condition of abnormal functioning

endemic disease (noun)	disease (noun)
a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location	an impairment of health or a condition of abnormal functioning