Final Exam Flashcards
(41 cards)
- Following a viral infection, what biological response(s) can occur?
A. Inflammation
B. Recruitment of immune cells to site of infection
C. Fever
D. All of the above
- Preventine vaccines are intended to protect _______________.
B. Organisms free of the targeted viral infection
- Which of the following is not a type of passive immune evasion viruses can do?
A. Viruses produce proteins that actively block an aspect of immune response.
- Which of the following is not a characteristic of monoclonal antibodies (mAbs)?
C. They can recognize multiple antigens/epitopes on a viral glycoprotein.
- Which of the following is not an attribute of active immunity?
A. Short-term protection
- Why is HIV a tricky virus to eliminate?
A. Systematically eliminates CD4+ T cells
B. Integrates its genome into the host cell’s genome in the nucleus and hides away from innate and adaptive immune defenses
C. High mutation rates
D. All of the above
- Tamiflu is an antiviral treatment for seasonal influenza infections (influenza A and B viruses are the primary culprits). How does Tamiflu work to prevent type A/B influenza infections?
C. It prevents the complete release/budding of mature influenza A/B virions from infected cells.
- Among the following descriptions, what feature of smallpox is not a factor that contributes to its eradication?
A. RNA genome of variola virus
- Which of the following is true regarding NRTIs?
C. AZT is an example of an NRTI.
- One vaccine candidate for influenza is a recombinant adenovirus expressing influenza virus hemagglutinin as an additional surface (spike) protein. Why would the use of adenovirus as a “carrier” virus advantageous?
B. Adenovirus carrier is alive and does not cause disease.
- Fill in the blank: ______________________ are professional phagocytes in humans.
A. Neutrophils, dendritic cells, and macrophages
- Which of the following is not an advantage of live attenuated virus vaccines?
C. There is a chance of reversion to a virulent strain.
- Which of the following is true about Raltegravir?
A. Blocks HIV’s integrase function
- What immunoglobulin isotype(s) can cross the placenta from mother to fetus?
B. IgG
- Therapeutic monoclonal antibodies can be used to treat viral infections. Which of the following is a chimeric monoclonal antibody?
C. Cosfroviximab (for Ebola)
- Which of the following descriptions is false regarding innate immunity?
B. Has high specificity of virus recognition and memory response
- What drug is effective against HSV?
B. Aciclovir
- Which is not a characteristic of adaptive immunity?
C. One type of principal molecules involved is complement.
- Which of the following is an advantage of phage therapy?
D. Phage are unaffected by antibiotic resistance.
- How does Pleconaril inhibit picornavirus infections?
B. Blocking the release of viral RNA genome from its capsid proteins into the cytoplasm, subsequently stopping viral protein synthesis and viral genome replication
- What is a disadvantage of inactivated virus vaccines?
A. Cannot stimulate MHC-I response
- Which of the following are Interferon-stimulated genes (ISGs)?
A. PKR
B. Mx
C. OAS/RNaseL
D. All of the above
- Use of virus-derived pest controls is fundamentally effective but remains limited. Which description below does not explain the on-going challenges facing the virus-derived pest control approach?
B. effects are fast but do not last long.
- HIV antiviral drugs are usually designed to target the function of _____________.
A. Reverse transcriptase
B. Integrase
C. Protease
D. All of the above