Pox Viruses Introduction

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Questions and Answers

How does smallpox virus infect humans?

  • Through the respiratory route (correct)
  • Via the digestive system
  • Through contaminated water
  • Through direct contact with infected skin nodules

What characteristic skin condition does smallpox virus produce?

  • Pustules (correct)
  • Hives
  • Warts
  • Blistering

When did smallpox first appear in China and the Far East?

  • 1000 years ago
  • 3000 years ago
  • 500 years ago
  • 2000 years ago (correct)

Which is a characteristic of smallpox disease during the 18th century?

<p>Reached plague proportions in cities (C)</p> Signup and view all the answers

Where did the last naturally occurring case of smallpox take place?

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

How does smallpox infection progress through the body?

<p>Via the blood to internal organs and then to the skin (D)</p> Signup and view all the answers

What is the size range of poxviruses that can be seen under a light microscope?

<p>400 x 230 nm (A)</p> Signup and view all the answers

Which type of particles are observed when poxviruses are viewed under an Electron microscope?

<p>Brick-shaped particles (B)</p> Signup and view all the answers

Which subfamily of poxviruses is associated with insect hosts?

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

What is a member of the Orthopoxvirus genus that can cause disease in humans?

<p>Vaccinia virus (C)</p> Signup and view all the answers

Which type of poxvirus has a broad host range affecting several vertebrates?

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

Which poxvirus that infects humans is morphologically distinct and classified under a different genus than Orthopoxvirus?

<p>Monkeypox (C)</p> Signup and view all the answers

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