Virology: Influenza and RNA-Dependent RNA Polymerase

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Questions and Answers

What is a common route of transmission for viruses that cause hemorrhagic diseases?

  • Direct contact with infected animals
  • Contaminated food and water
  • Mosquito vectors
  • All of the above (correct)

Which of the following viruses is known to cause a lytic infection in pneumocytes, leading to SARS?

  • Coxsackie virus
  • Coronavirus (correct)
  • Rhinovirus
  • Poliovirus

What is the primary mechanism of transmission for Hepatitis A virus?

  • Fecal-oral transmission (correct)
  • Sexual transmission
  • Fomite transmission
  • Vector-borne transmission

Which virus is endemic in West Africa and known to cause a severe fever, myalgia, and hemorrhage?

<p>Lassa virus (B)</p> Signup and view all the answers

What is the primary target of the immune response in viral infections?

<p>Viral envelope proteins (C)</p> Signup and view all the answers

Which antiviral drug is effective against viruses that use a RNA-dependent RNA polymerase?

<p>Ribavirin (A)</p> Signup and view all the answers

What is the primary mechanism of cytopathogenesis in viral infections?

<p>Apoptosis (D)</p> Signup and view all the answers

Which virus is known to cause a severe, rare, and deadly disease in sub-Saharan Africa?

<p>Ebola virus (B)</p> Signup and view all the answers

What is the primary route of transmission for poliomyelitis?

<p>Contaminated food and water (C)</p> Signup and view all the answers

Which of the following viruses is not a coronavirus?

<p>Lassa virus (B)</p> Signup and view all the answers

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