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The Gram-Negative Bacillus That Can Be Described as Oxidase-Negative, Nitrate-Positive

Question 1

Multiple Choice

The gram-negative bacillus that can be described as oxidase-negative, nitrate-positive, and H₂S-positive is

A) E Edwardsiella spp.
B) Shigella vulgaris.
C) Enterobacter aerogenes.
D) Escherichia coli.
E) Shigella sonnei.

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