M. catarrhalis may be described as:
a. oxidase-positive.
b. a glucose utilizer.
c. a major cause of venereal disease.
d. often carrying an antiphagocytic capsule.
Which type of assay uses a variety of endpoint measurements to determine whether the virus is inhibited by the antiviral drug or is demonstrating drug resistance?
a. Phenotypic
b. Genotypic
c. NA inhibition assay
d. Enzyme immunoassay
Which of the following highly contagious viruses is a single-stranded ribonucleic acid (RNA) virus with a helical capsid and envelope and is transmitted by coming in contact with respiratory secretions?
a. Coxsackievirus A
b. Rhinovirus
c. Parvovirus
d. Measles
To detect immunoglobulin M (IgM) antibodies in an acute phase, blood should be collected in _____ days after the onset of infection.
a. 2 to 5
b. 5 to 7
c. 7 to 14
d. longer than 21
MacConkey agar serves which purpose when used in the bacterial fecal culture?
a. Evaluation of general flora and predomi-nant species
b. Selection of enteric pathogens such as Salmonella, Aeromonas, and others
c. Inhibition of normal flora and selection of enteric pathogens
d. Enrichment for enteric pathogens such as Salmonella and others
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