pasteurellosis vs hemorrhagic septicemia

pasteurellosis and hemorrhagic septicemia both are nouns.

Word	Noun	Adjective	Verb	Adverb
pasteurellosis	Yes	No	No	No
hemorrhagic septicemia	Yes	No	No	No

As nouns, pasteurellosis and hemorrhagic septicemia are synonyms defined as:

pasteurellosis and hemorrhagic septicemia: an acute infectious disease characterized by pneumonia and blood infection

pasteurellosis (noun)	hemorrhagic septicemia (noun)
an acute infectious disease characterized by pneumonia and blood infection	an acute infectious disease characterized by pneumonia and blood infection