Viral Infections

Viral Infections

Open Ended

What do you think??? How does a computer virus infect a computer?

Viral Infection Step 1: ATTACHMENT

• The "key's on the outside of the virus attaches to the "locks" on the host cell

Multiple Choice

Chicken pox is an infectious disease which causes the patient’s body to be covered in blisters. Chicken pox does not respond to treatment with antibiotics. Is chicken pox a bacteria or a virus?

• Bacteria

• Viruses

Multiple Choice

What is the first step of the virus reproduction cycle?

• The viruses genetic material (DNA) starts to take over the functions of the cell
• The host cell bursts open, releasing the new viruses
• The virus injects its genetic material into the cell
• A virus attaches to the surface of a host cell

Viral Infection Step 2: INFECTION

• The virus tricks the host cell into letting it go inside

Multiple Choice

Viruses are...

• prokaryotic
• eukaryotic
• non-living
• endospores

Viral Infection Step 3: REPLICATION

• The virus hijacks the host cell's nucleus and begins to make copies of itself

• These copies are then assembled into fully functional viruses

• Millions of copies of the original virus are made

Multiple Choice

What do viruses need to reproduce?

• they need genetic material

• They need a host cell

• They need bacteria

• They need insulin

Viral Infection Step 3: RELEASE

• The new viruses are released from the host cell

• This process damages the infected cell

• The new viruses go on to infect more cells

• The cycle will start all over

Multiple Choice

What does it mean for a person to be immune to a viral infection.

• They are resistant to the infection

• they can catch a disease

• they have a disease

• they are dying from an infection

Multiple Choice

What are two common diseases caused by viruses?

• common cold and the flu

• strep throat

• allergies

• kidney stones

Multiple Choice

What is found inside every virus?

• Genetic material

• bacteria

• protein

• a monster