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Questions and Answers
What occurs during a viral acute infection?
What occurs during a viral acute infection?
- None of the answers are correct
- The virus infects cells causing the disease, but the virus infects cells causing a severe disease
- The virus does not infect cells, but after the recovery it is completely eliminated
- The virus infects cells causing the disease, but after the recovery it is completely eliminated (correct)
Which description accurately represents vaccines based on whole inactivated organisms?
Which description accurately represents vaccines based on whole inactivated organisms?
- A preparation that contains a virus that cannot replicate but only stimulates immune response (correct)
- A preparation that contains a virus and viral antigens
- A preparation that contains a virus that can replicate and stimulate immune response
- A preparation that contains only a specific viral antigen
What characterizes a latent viral infection?
What characterizes a latent viral infection?
- Is in active replication
- Replicates only in lymph nodes
- Replicates but at a low level
- It does not replicate and the genome is usually in episomal form (correct)
What is the primary function of the viral capsid?
What is the primary function of the viral capsid?
What is a crucial effect of antibiotics?
What is a crucial effect of antibiotics?
What role does the glycocalyx play in microorganisms?
What role does the glycocalyx play in microorganisms?
What is true about the envelope of a virus?
What is true about the envelope of a virus?
Which sequence accurately describes the events in the viral life cycle?
Which sequence accurately describes the events in the viral life cycle?
What are the clinical implications of Staphylococcus aureus?
What are the clinical implications of Staphylococcus aureus?
What does abortive viral infection indicate?
What does abortive viral infection indicate?
Flashcards
Viral Acute Infection
Viral Acute Infection
A viral infection where the virus infects cells causing illness, but the virus is eventually eliminated after recovery.
Inactivated Vaccine
Inactivated Vaccine
A vaccine containing a virus that can't replicate, but stimulates an immune response.
Latent Infection
Latent Infection
A viral infection where the virus is not actively replicating, often in an episomal form.
Viral Capsids Function
Viral Capsids Function
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Antibiotics Actions
Antibiotics Actions
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Glycocalyx/Biofilm Function
Glycocalyx/Biofilm Function
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Viral Envelope
Viral Envelope
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Viral Life Cycle Order
Viral Life Cycle Order
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Staphylococcus aureus infections
Staphylococcus aureus infections
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Abortive Viral Infection
Abortive Viral Infection
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Study Notes
Viral Infections
- Viral Acute Infections: The virus infects cells, causing disease, and is completely eliminated after recovery.
- Viral Latent Infections: Viruses replicate at lower levels, don't replicate widely, and have their genome in an episomal form.
- Vaccinations: Vaccines use whole inactivated organisms, stimulate immune responses, or contain specific viral antigens and immunoglobulins.
Viral Structure and Function
- Viral Capsid: Protects the viral genome and facilitates cell entry (in naked viruses).
- Glycocalyx (Biofilm): A protective layer, found on mycobacterial, assists immune systems in attacking bacteria.
- Viral Envelope: An outer covering of viruses; made of proteins, can have both bacterial and viral components.
Viral Life Cycle
- Viral Replication Cycle: Adsorption, penetration, uncoating, replication, assembly, maturation, release
- Abortive Viral Infection: Virus enters a cell, but the life cycle isn't completed.
Bacterial Infections
- Staphylococcus aureus: Can cause food poisoning, toxic shock, and soft tissue infections. It's a Gram-positive bacteria.
Antibiotics
- Antibiotics: Do not cure viral infections. Inhibit bacterial replication, not viral.
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