Choose the bacterial family that is best described as catalase-positive, oxidase-negative, gram-negative bacilli that are facultative anaerobes and most of which reduce nitrates to nitrites.

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Enterobacteriaceae are facultative anaerobes that ferment glucose, are oxidase-negative, and, with rare exception, reduce nitrates to nitrites. Furthermore, except for Shigella dysenteriae type 1, all commonly isolated Enterobacteriaceae are catalase-positive.

Choose the Bacterial Family That Is Best Described as Catalase-Positive