St. Louis Community College

Clinical Laboratory Technology

Mystery Bug #12

(Click on the small picture to see the larger picture.)

Gram Stain result:

(Copyright protected material used with permission of the authors and the University of Iowa's Virtual Hospital,

Growth on Chocolate Agar (CA) incubated at 37°C in Carbon dioxide:

No growth on Sheep blood agar or MacConkey agar. Biochemical results:

Oxidase Test

Porphyrin Test

Additional test results:

Blood agar with Staph. streak.

X, V, and XV disks

BBL Quad plates

Can you name this bug?

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St. Louis Community College at Forest Park
Karen M. Kiser MA MT(ASCP)PBT
Emeritus Professor
Clinical Laboratory Technology/Phlebotomy
St. Louis, MO USA

Updated January 1, 2008

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