Page 321 - Review of Medical Microbiology and Immunology ( PDFDrive )
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310
PART IV Clinical Virology
2. Regarding human papillomavirus (HPV), which one of the fol-
(C) Penile intraepithelial neoplasia associated with HPV-6
lowing statements is most accurate?
(D) Penile intraepithelial neoplasia associated with HPV-16
(A) There is no vaccine available against HPV.
(B) Acyclovir is effective in preventing lesions caused by HPV but
does not cure the latent state.
ANSWERS
(C) Antigen–antibody complexes play an important role in the
pathogenesis of warts caused by HPV.
(D) The early proteins of HPV play a more important role in malig-
nant transformation than the late proteins.
3. (C)
(E) The diagnosis of HPV infection is usually made by detecting 1. (B)
4. (D)
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mebooksfree.com mebooksfree.com mebooksfree.com PRACTICE QUESTIONS: USMLE & mebooksfree.com mebooksfree.com
cytoplasmic inclusions within giant cells in the lesions.
3. Regarding parvovirus B19, which one of the following statements
is most accurate?
(A) A vaccine is available that contains killed virus as the
SUMMARIES OF ORGANISMS
immunogen.
(B) Patients infected by parvovirus B19 can be diagnosed in the
Brief summaries of the organisms described in this chapter
laboratory using the cold agglutinin test.
begin on page 670. Please consult these summaries for a rapid
(C) Parvovirus B19 causes a severe anemia because it preferentially
review of the essential material.
infects erythrocyte precursors such as erythroblasts.
(D) It commonly infects neutrophils, resulting in an immunodefi-
ciency that predisposes to infections by pyogenic bacteria.
(E) Parvoviruses have a double-stranded DNA genome but require
a DNA polymerase in the virion because they replicate in the
cytoplasm. COURSE EXAMINATIONS
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4. A 24-year-old woman is seen by her gynecologist for a routine Pap
Questions on the topics discussed in this chapter can be found
smear. The smear shows cervical intraepithelial neoplasia grade 3
in the Clinical Virology section of Part XIII: USMLE (National
(CIN 3). You decide to examine her long-term male sexual part-
ner. Which one of the following is the most likely finding?
XIV: USMLE (National Board) Practice Examination starting
(A) Condylomata lata
on page 751.
(B) Condylomata acuminata
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