Viruses: Life Cycle and Disease · USMLE Step 1

A patient with a history of bone marrow transplant develops pneumonia from CMV reactivation. What type of virus is CMV?

  1. Enveloped dsDNA herpesvirus
  2. Non-enveloped ssRNA virus
  3. Enveloped negative-sense RNA virus
  4. Segmented dsRNA virus
Show answer and explanation

Correct answer: Enveloped dsDNA herpesvirus

CMV is a herpesvirus, which are enveloped, double-stranded DNA viruses. They are known for latent infections with reactivation.

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