Why are vaccines and/or passive immunization the method of choice in thetreatment or prevention of viral infections?A. There are no known inhibitors to reverse transcriptionB. Viruses are non-living and do not have their own genetic mechanisms to reproduceby themselves hence host cells must rely on targeting the virus or their products.C. Antibodies prevent replication of viral genomeD. Antibodies prevent transcription and translation of viral genomesE. All of these

The immune system comprises cells and other biomolecules that prevent the invasion and infection of…

Answered: Why are vaccines and/or passive…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Antigenic drift refers to: A.The reassortment of genomic segments from different viruses B.Cytotoxic T cells identifying viral infected host cells C.The accumulation of mutations in the viral genome due to an error prone polymerase D.Antigen presenting cells failure to recognize the influenza virus
From: "Towards a universal flu vaccine" Researchers are trying to create a universal influenza vaccine - one that can confer immunity to all, or nearly all, strains of influenza virus. The universal vaccine will target a stable antigen that is present on all influenza viruses that does not readily mutate to different forms. The target researchers are focusing on as a universal stable antigen is on the... O The H spike head. O H spike neck O N spike O Viral envelope
A person is infected with HIV. The individual is treated with several drugs, including azidothymidine (AZT). Which of the following is the most immediate effect of this drug? O It inhibits formation of the capsid. O It does not allow the viral genome to become integrated into the host genome. O It allows reverse transcriptase to proofread, and this will allow successful treatment with a vaccine. O It does not allow the virus to make a DNA copy of its genome.
A virus is a small collection of genetic code, either DNA or RNA surrounded by a protein coat. a virus cannot replicate alone and needs a host. With this, covid 19 is not likely to respond with which of the ff management: a. antibiotics b. antiviral c. vaccine d. supportive management (fluids, rest)
Explain that a virus can’t be treated with an antibiotic and why. Think about selective toxicity and why those targets don’t exist for a viral infection.
This is a hypothetical scenario. A recently emerged virus has been transmitting and mutating rapidly in humans throughout the world. If a vaccine that stops transmission of all current circulating variants of the virus in humans is utilized and herd immunity is achieved throughout the world, would this essentially stop 1) further transmission of the virus; 2) further mutation of the virus, respectively? Why/why not? Please answer the question succinctly and in bullet points!
Viruses can easily mutate exchange genetic material, mechanisms referred to as antigenic drift and antigenic shift. These changes allow the virus to evade the immune system defenses. Match each term with the correct definition Antigenic drift [ Choose ] [Choose ] Different strains of a virus or strain of different viruses, combine and form a new strain that now has a mixture of the surface antigens Antigenic shift The virus changes genetically by accumulating mutations within the genes that code for antibody-binding sites
Finding drugs to treat viruses is far more challenging than finding drugs to treat bacteria. A. Why the difference? Ans: Viruses need a host cell to replicate and a bacteria needs food to continue to replicate. B. What can anti-viral drugs target in order to bring a viral infection under control, or to prevent a viral infection in the first place? Ans: To bring an infection under control you would want to inhibit protease so it could not break down the polypeptide protein chain down into new protein coats. C. What can anti-viral drugs target to prevent a viral infection in the first place? Ans: To prevent a viral infection in the first place you could take a medication that would alter the surface receptor, fill in the surface receptor or inhibits the viral surface protein all together. D. Offer 2 examples of drugs used to control viral infections (specify virus) and how do they work on different targets. Ans:…
We are confronted with a new RNA virus that uses x-proteins to attach to host cells and primarily infects liver cells. Based on this we would expect: (2 answers only) a. possible latent infections b. viral susceptibility to valacyclovir c. viral suspeptibility to RNA->RNA pol inhibitor d. symptoms of hepatits
prophage is a stage in the development of a/ana. bacterial virus. b. poxvirus.c. lytic virusd. enveloped virus
Vaccines have effectively prevented many viral diseases. Attempts over many years to develop an effective vaccine against HIV disease and AIDS, however, have so far met with little success. Why is this so?
People with the CCR5Δ32 mutation of a T-cell surface protein can be exposed to some strains of HIV-1 without becoming sick. What step of the virus life cycle is likely to be inhibited with this mutation? a. Release b. Reverse transcription c. Uncoating d. Attachment

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