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A microbiologist is reading a sputum culture and notices tiny, translucent colonies clsely around a beta-hemolytic colony on the blood agar plate (BAP).  The colonies appear to only be growoing where the blood has been hemolyzed.  What is the probable identify of the organism that is growing closely to the beta-hemolytic organism, and why are they growing n the hemolyzed area?

What is an obligate/strict anaerobe?

A 21-year-old patient presents with pharyngitis. A throat swab is collected and submitted for anaerobic culture. This specimen should be:

A child was bitten on the arm by one of her siblings. A wound culture was ordered and the gram stain revealed slender gram negative rods. Culture characteristics noted: growth on blood agar with colonies that “pit” the agar and smelled like bleach. Catalase test was negative and oxidase positive. The most likely identification of this organism is:

Which biochemical spot test differentiates Enterococcus sp. from Viridans Streptopcoccus?

Which of the following organisms does not require susceptibility testing to the antimicrobial indicated when isolated from a clinically significant source?

Gram stain examination from a blood culture bottle shows dark blue, spherical organisms in clusters. Growth on BAP shows small, round, yellow to cream colonies. Further testing should include:

Complete lysis of the red blood cells in the Blood Agar Plate (BAP) is known as what type of hemolysis?

Which two diseases are usually preceded by infection with a beta-hemolytic streptococci?

Upon review of a sputum gram stain, the technician notes that all the neutrophil nuclei in the smear are stained dark purple. The best explanation for this finding is: