RNA Viral Classification Quiz
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Questions and Answers

Which virus causes bilateral swelling of the salivary glands and may lead to sterility in males?

  • Influenza virus
  • Hantavirus
  • Measles virus
  • Mumps virus (correct)
  • What is the most common cause of fatal acute respiratory tract infections in infants and young children?

  • Influenza virus
  • Coronavirus
  • Hantavirus
  • RSV (correct)
  • Which of the following is a common complication of measles that affects the central nervous system?

  • Pneumonia with bacterial superinfection
  • Bronchiolitis
  • Encephalitis (correct)
  • Meningitis
  • How is measles primarily transmitted?

    <p>Inhalation of large droplet aerosols</p> Signup and view all the answers

    Which viral protein is responsible for binding to sialic acid on the surface of epithelial cells?

    <p>Hemagglutinin (H)</p> Signup and view all the answers

    What is the role of Neuraminidase (N) protein in viral infection?

    <p>Cleaves sialic acid to prevent self-binding</p> Signup and view all the answers

    Which virus requires N activity to cleave sialic acid on viral glycoproteins?

    <p>Influenza virus</p> Signup and view all the answers

    What is the most common route of transmission for mumps virus to reach different organs in the body?

    <p>Bloodstream (viremia)</p> Signup and view all the answers

    Which viral family is associated with causing upper respiratory tract infections such as Parainfluenza, Mumps, and Measles?

    <p>Paramyxoviridae</p> Signup and view all the answers

    What is a major pathological effect of RSV infection in infants related to immune-mediated cell injury?

    <p>Formation of airway obstructions from mucus and necrotic material</p> Signup and view all the answers

    What is the primary mode of transmission for Measles virus?

    <p>Droplet transmission</p> Signup and view all the answers

    Which virus is associated with aerosol transmission and close contact with infected individuals?

    <p>Respiratory Syncytia virus</p> Signup and view all the answers

    What is a characteristic feature of the pathogenesis of Hantavirus infections?

    <p>Hemorrhagic fever</p> Signup and view all the answers

    Which statement about Influenza virus pathogenesis is correct?

    <p>It targets the respiratory system, leading to respiratory symptoms.</p> Signup and view all the answers

    What is a common symptom associated with infections of Enteroviruses?

    <p>Myocarditis</p> Signup and view all the answers

    How does Rabies virus primarily enter the human body?

    <p>Through skin lesions or scratches by rabid animals</p> Signup and view all the answers

    Which viral infection is linked to causing birth defects if contracted during pregnancy?

    <p>Rubella virus</p> Signup and view all the answers

    What is a distinguishing feature of Coronaviruses in terms of viral binding and entry into host cells?

    <p>Endocytosis followed by fusion at acidic pH conditions</p> Signup and view all the answers

    Which of the following viruses is known for its ability to form multinucleated giant cells upon infection?

    <p>Respiratory Syncytia virus</p> Signup and view all the answers

    What is a characteristic clinical feature of Measles virus infections in the early stages?

    <p>Koplik spots in the mouth</p> Signup and view all the answers

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