Orthomyxoviridae: Structure and Classification
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Questions and Answers

What distinguishes the multiple subtypes within each virus type of Orthomyxoviridae?

  • Variations in the envelope structure
  • Variations in the host cell attachment proteins
  • Variations in the viral RNA structure
  • Variations in the surface glycoproteins-hemagglutinin (HA) and neuraminidase (NA) (correct)
  • How does the influenza virus lead to secondary bacterial infections in the respiratory tract?

  • By triggering an allergic reaction leading to bacterial invasion
  • By inducing overproduction of mucus in the respiratory tract
  • By directly attacking the bacteria in the respiratory tract
  • By infecting and causing a loss of the ciliated epithelium and disrupting mucociliary flow (correct)
  • What is the origin of the envelope of Myxoviruses?

  • Stolen from other viruses
  • Derived from host-membrane by budding (correct)
  • Generated from viral RNA
  • Synthesized de novo by the virus
  • Which demographic group is most fatally affected by influenza virus infections?

    <p>Elderly, infants, and chronically ill individuals</p> Signup and view all the answers

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