A microbiologist is working the miscellaneous bench reading stool cultures.  The Skirrows Blood Agar plate from a culture has growth on the plate that was incubated at 42°C.  The colonies are nonhemolytic, moist, “runny-looking”, and spreading. The Gram stain shows tiny Gram negative bacilli with some seagull-wing shapes. What is the most likely identification?

A woman in her 20s goes to her physician complaining of burning upon urination, frequency, and general malaise. Her physician requests a urine culture which grows 25,000 CFU/mL of a catalase positive, coagulase negative, novobiocin-resistant Gram-positive cocci.  What is the most likely pathogen?

A sheep blood agar plate inoculated with 0.001mL of urine grows 50 colonies of Staphylococcus aureus. How many colony forming units per mL of urine should be reported.

The following is an obligate intracellular organism:

A culture is taken from a subcutaneous nodule near a puncture wound on a gardener’s forearm. A mold at room temp showed septate hyphae with a daisy-flower conidia arrangement. At 37°C this culture produced cigar-shaped yeast. This organism is most likely:

Which of the following organisms ia white and non-hemolytic on SBA , is a non-fermenter on mannitol salt agar, and may be the cause of a nosocomial infection?

An acute infection with HBV will be positive for the following:

The following is true of Treponema pallidum:

The D Test indicates clindamycin induced resistance. Which of the following should be reported to the healthcare provider?

A patient has lesions on his scalp, hair, trunk of the body and finger nails. A single organism was cultured from all sites. This organism is most likely a: