streptococcal vs strep

streptococcal is not a noun while strep is a noun.

Word	Noun	Adjective	Verb	Adverb
streptococcal	No	Yes	No	No
strep	Yes	Yes	No	No

As adjectives, streptococcal and strep are synonyms defined as:

Other synonyms of streptococcal include streptococcic.

streptococcal (noun)	strep (noun)
	spherical Gram-positive bacteria occurring in pairs or chains; cause e.g. scarlet fever and tonsillitis

streptococcal (adjective)	strep (adjective)
of or relating to or caused by streptococci	of or relating to or caused by streptococci