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API 20E.

The top strip is an uninoculated control. The bottom strip was inoculated with an unknown oxidase-negative, gram-negative bacterium.

Use the bioMerieux Analytical Profile Index to identify the organism.

Note, some tests cannot be done in the API 20E:

a. Oxidase test
b. Nitrate reduction
c. Motility
d. Growth on MacConkey agar
e. OF test