Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 11, Problem 3TQ
Summary Introduction
To review:
The advantages and disadvantages of usage of viral vectors for the treatment of haemophilia.
Introduction:
Hemophilia is a genetic disorder characterized by the absence of clotting factors like factor VIII and IX in the blood. They are inherited in an autosomal X-linked pattern. The symptoms of this disorder include profuse bleeding upon minor injury, easy bleeding, and risk of internal bleeding in joints and the brain.
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Discuss the advantages and disadvantages of the use of the following viruses as vectors
a. Retroviruses b. Adenoviruses c. Adeno-associated viruses
Discuss in detail, how you would produce recombinant protein subunit vaccines for Influenza virus.
Can you please pick the right answer in each parentheses?
The spike protein of SARS-CoV-2 is a carbohydrate-modified protein that ["bind the RNA genome of the virus", "", "is on the surface of the viral particle", ""] and plays a role in both ["replication of the viral genome", "recognition of host cell"] and ["packaging of viral genome for export", "fusion of viral envelope with host cell plasma membrane"] .
Importantly, earlier work on spike proteins from other corona viruses showed that this molecule ["remarkable resistance to immune response", "shows remarkable conformational changes"] and only one of these served as a good antigen for vaccine development.
A critical discovery in advancing the development of our current vaccines was determining what changes in the amino acid sequence would ["block degradation of the spike protein", "stabilize the conformation of the protein found on the viral particle"]. This…
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Microbiology: An Evolving Science (Fourth Edition)
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- Answer the following and inlcude the references SARS-CoV-2, the virus that causes CoVid-19, belongs to the Coronaviridae family. Viruses under this family have a genome made of single-stranded positive-sense RNA. Is this similar to the viral genome of HIV? If so, do you think that – in theory – they would have similar replication cycles? Do you think that ART combinations/options might help in suppressing the viral replication of SARS-CoV-2? Expound.arrow_forwardAside from antibody-producing vaccines against spike proteins, describe at least 2 other therapeutic strategies that employ knowledge of pathways allowing viral entry into cells and/or mechanisms preventing replication of new viral particles after entry.arrow_forwarddiscuss the benefits and limitations of using a retroviral system or an adenovirus for the delivery of a therapeutic gene.arrow_forward
- Transmission studies suggest that there are at least three (3) different variants of the SARS-CoV-2 virus circulating in Latin America and the Caribbean. Discuss a recombinant DNA technology strategy that could be used to verify this claim.arrow_forwardDiscuss the advantages and disadvantages of the use of the following viruses as vectors Retroviruses Adenoviruses Adeno-associated virusesarrow_forwardThere are several coronaviruses in the database, why is the SARS-CoV-2 so dangerous?arrow_forward
- Discuss the pros and cons of salvaging or destroying the smallpoxvirus stocks.arrow_forwardHow the use of the nucleic acid vaccine gives protection against diseases like COVID-19. Please briefly explain at your own words.arrow_forwardExplain why the authors believe that plasma cells are implicated in the infection and recovery of patients with the corona virus.arrow_forward
- There are several coronavirus in the database, why is the SARS-CoV-2 so dangerousarrow_forwarddiscuss the hierarchy of controls necessary for doing laboratory investigations with the SARS coronavirus-2 virus.arrow_forwardHow the use of the nucleic acid vaccine gives protection against diseases like COVID-19. Please briefly explain at your own words.? explain do it seriouslyarrow_forward
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