shigella vs enterobacteria

shigella and enterobacteria both are nouns.

Word	Noun	Adjective	Verb	Adverb
shigella	Yes	No	No	No
enterobacteria	Yes	No	No	No

As nouns, enterobacteria is a hypernym of shigella; that is, enterobacteria is a word with a broader meaning than shigella:

shigella: rod-shaped Gram-negative enterobacteria; some are pathogenic for warm-blooded animals; can be used as a bioweapon
enterobacteria: rod-shaped Gram-negative bacteria; most occur normally or pathogenically in intestines of humans and other animals

Other hypernyms of shigella include enteric bacteria, enterics, entric.

shigella (noun)	enterobacteria (noun)
rod-shaped Gram-negative enterobacteria; some are pathogenic for warm-blooded animals; can be used as a bioweapon	rod-shaped Gram-negative bacteria; most occur normally or pathogenically in intestines of humans and other animals