A) Mycobacterium avium complex (MAC)
B) Mycobacterium kansasii
C) Mycobacterium scrofulaceum
D) Mycobacterium fortuitum complex
E) Mycobacterium marinum
Correct Answer
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Multiple Choice
A) polysaccharides on the cell wall
B) lipoteichoic acid
C) M proteins
D) hyaluronic acid capsule
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) a reservoir is human carriers
B) it is a zoonotic infection
C) the symptoms are abrupt fever, lung edema, respiratory distress, and hypotension
D) it is transmitted by aerosol transmission from rodent excreta
E) the first U.S. outbreak occurred in 1993 in the Southwest
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verified
True/False
Correct Answer
verified
Multiple Choice
A) auditory canal
B) sinuses
C) nasal cavity
D) eustachian (auditory) tubes
E) subarachnoid space
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verified
Multiple Choice
A) diphtheria
B) pharyngitis
C) tuberculosis
D) pertussis
E) SARS
Correct Answer
verified
Multiple Choice
A) kidneys
B) long bones
C) spine
D) brain
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) The influenza virus genome mutates over time changing the amino acid sequence of the envelope glycoproteins. Each encounter with a new version of the virus requires activation of naive lymphocytes rather than memory cells, which is the reason we receive a new vaccination each year.
B) The influenza genome contains 10 genes distributed on 8 separate RNA strands. These strands can be exchanged between different viruses.
C) Some virus strains infect birds and swine, some infect swine and humans. If the strain that infects swine and humans exchanges strands with a bird flu strain while in a swine host cell, that virus can go on to infect a human who will have no recognition for the bird protein.
D) If a new strain of virus emerged from an antigenic shift event, a vaccine different to the annual flu vaccine would have to be administered because the proteins coded for by the new strain would be different to those made as a result of antigenic drift.
Correct Answer
verified
True/False
Correct Answer
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Multiple Choice
A) causes serious disease in infants 6 months old or younger
B) is highly contagious
C) is transmitted through droplet contact and fomite contamination
D) cannot be prevented by vaccination at this time
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) Nasal hairs
B) Cilia
C) Mucus
D) Macrophages
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) IgA
B) IgE
C) IgG
D) IgM
E) All of the choices are correct.
Correct Answer
verified
Multiple Choice
A) Secondary infections can occur during the convalescent phase
B) Caused by a small gram-positive rod
C) Incubation period is 3-21 days
D) Coldlike symptoms are common for the paroxysmal stage
E) An uncontrollable cough occurs during the paroxysmal stage
Correct Answer
verified
Multiple Choice
A) Mouth
B) Nasal cavity
C) Trachea
D) Pharynx
E) Larynx
Correct Answer
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Multiple Choice
A) Blood
B) Cerebrospinal fluid
C) Nasal swab
D) Skin scraping
Correct Answer
verified
Multiple Choice
A) Tellurite medium
B) Mannitol salt agar
C) Eosin methylene blue agar
D) None of the choices are correct. This pathogen must be propagated using tissue culture.
Correct Answer
verified
Multiple Choice
A) Alveoli
B) Bronchi
C) Bronchioles
D) Trachea
E) Sinuses
Correct Answer
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True/False
Correct Answer
verified
Multiple Choice
A) it grows in moist soil; rich in nitrogen from bird and bat droppings
B) it is a yeast with a capsule
C) it is commonly found in the southwestern United States
D) it always results in severe infections
E) its transmission occurs through water droplets
Correct Answer
verified
Multiple Choice
A) droplet contact and indirect contact
B) endogenous
C) direct contact
D) None of the choices are correct.
E) All of the choices are correct.
Correct Answer
verified
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