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Safety precautions designed to minimize laboratory-acquired infections when working with Mycobacterium tuberculosis in a clinical laboratory would prevent spreading of these organisms by

A stool specimen is submitted for culture from a patient with gastroenteritis, nausea, and vomiting. A gram-negative rod grows on TCBS agar as a large green colony type. Additional screening characteristics include:TSI: K/A, H2S negNutrient broth with 0% NaCl: no growthNutrient broth with 3% NaCl: growthThe most probably presumptive identification of this isolate is

It is important to differentiate between Enterococcus and Group D Streptococci because 

Characteristics of the HACEK group of bacteria include

Bacteria that are glucose oxidizers in Hugh-Leifson (H-L) O-F medium produce an alkaline/no change reaction in Triple sugar iron (TSI) because

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

The specimen of choice for respiratory syncytial virus (RSV) is

the persistence of which marker is the best evidence of chronic HBV infection

Stock cultures needed for quality control for oxidase production are

A gram negative bacillus was isolated from the cerebrospinal fluid of an infant with a CSF shunt. The organism produced NLF mucoid colonies on MacConkey agar, oxidase positive, and gave the following biochemical results: TSI agar: K/K, gas neg, H 2S neg PAD: neg, Indole: neg, Motility: pos Cetrimide: pos, Citrate: pos The most probable identity of this organism is