leptospirosis vs zoonosis

leptospirosis and zoonosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
leptospirosis	Yes	No	No	No
zoonosis	Yes	No	No	No

As nouns, zoonosis is a hypernym of leptospirosis; that is, zoonosis is a word with a broader meaning than leptospirosis:

leptospirosis: an infectious disease cause by leptospira and transmitted to humans from domestic animals; characterized by jaundice and fever
zoonosis: an animal disease that can be transmitted to humans

Other hypernyms of leptospirosis include zoonotic disease.

leptospirosis (noun)	zoonosis (noun)
an infectious disease cause by leptospira and transmitted to humans from domestic animals; characterized by jaundice and fever	an animal disease that can be transmitted to humans