Vincent's infection vs Vincent's angina

Vincent's infection and Vincent's angina both are nouns.

Word	Noun	Adjective	Verb	Adverb
Vincent's infection	Yes	No	No	No
Vincent's angina	Yes	No	No	No

As nouns, Vincent's infection and Vincent's angina are synonyms defined as:

Vincent's infection and Vincent's angina: an acute communicable infection of the respiratory tract and mouth marked by ulceration of the mucous membrane

Other synonyms of Vincent's infection include trench mouth.

Vincent's infection (noun)	Vincent's angina (noun)
an acute communicable infection of the respiratory tract and mouth marked by ulceration of the mucous membrane	an acute communicable infection of the respiratory tract and mouth marked by ulceration of the mucous membrane