yaws vs infectious disease

yaws and infectious disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
yaws	Yes	No	No	No
infectious disease	Yes	No	No	No

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

yaws: an infectious tropical disease resembling syphilis in its early stages; marked by red skin eruptions and ulcerating lesions
infectious disease: a disease transmitted only by a specific kind of contact

yaws (noun)	infectious disease (noun)
an infectious tropical disease resembling syphilis in its early stages; marked by red skin eruptions and ulcerating lesions	a disease transmitted only by a specific kind of contact