Which of the following is used to diagnose Moraxella catarrhalis

Acid-fast bacilli that grows slowly at 35 degrees C on Lowenstein-Jensen medium as rough, nonchromagenic mycobacteria that are niacin-positive and nitrate-positive are

Which of the following diseases is most likely to be acquired from a hot tub or whirlpool?

The lowest concentration of antibiotic that inhibits growth of a test organism is the

A number of vacationers who have traveled outside the U.S. have had their vacations interrupted by a case of “traveler’s diarrhea,” which is commonly associated with which etiologic agent?

Which Clostridium spp is most commonly recovered from cases of gas gangrene?

Organisms that grow best with greater carbon-dioxide concentrations than are found in ambient air are called

The following are reported on a given work day:1. Observation of AFB organisms on direct smear of a sputum2. Identification of Neisseria gonorrhoeae from a genital specimen of a female outpatient3. Positive findings of Entamoeba histolytica trophozoites and cyst forms4. Oxacillin resistance noted in a Staphylococcus aureus isolate from an inpatientAll require what additional step?

A clean catch urine cultured using 0.01 ml calibrated loop grew 60 colonies.  What is the correct CFU/ml

A  yellow colony from a skin lesion grew aerobically. It was a gram positive cocci, catalase positive, coagulase negative.  A modified oxidase test was performed and it was positive.  The most likely organism is