Viral Transmission & Replication

Viral Transmission

We will explore how viruses replicate and explain how they spread!

Open Ended

Provide one reason as to why a virus is considered a non-living particle.

Labelling

Label this envelope virus.

Drag labels to their correct position on the image

Lipid envelope

Glycoprotein

Genetic material

Hotspot

What part of this T4 Bacteriophage virus will attach to a Prokaryotic cell?

Multiple Choice

Which Eukaryotic cellular structure works similarly to a Capsid on a Virus?

• Mitochondria

• Nucleus

• Ribosome

Open Ended

Other than sneezing or coughing, how do you think can a virus spread?

When an infected person or organism has physical contact through touch or fluid exchange with another person.

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Direct Contact

When you come in contact with a surface that has virus particles on it.

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Indirect Contact

Carry pathogen from one person to the next.

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Vectors

Multiple Choice

Which type of viral transmission do you have the most control over?

• Direct contact

• Indirect contact

• 
  Vectors

Open Ended

Other than touching door knob, what would be another example of indirect contact?

Lytic and Lysogenic Cycles.

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Viral Replication

Host cell destroyed.

Host could experience symptoms within 12-72 hours.

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​Lytic Cycle
Active Viral Replication

After infection, the virus DNA will integrate with host cell DNA.

Each time host cell divides, the viral DNA divides with it.

Host does not experience symptoms.

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​Lysogenic Cycle
Dormant Viral Replication

Open Ended

How is a dormant or latent virus different from an active virus?

Multiple Choice

What is the name of the replication cycle when the virus is in an active state?

• Lytic

• Lysogenic

Multiple Choice

Which type of medications can inhibit the virus from going into an active state and spreading to another person?

• Antivirals

• Antibiotics

Multiple Choice

Which best describes vaccinations?

• A cure for viruses

• Helps prevent viral infections and transmission