What happens when a person who is infected with a herpes virus experiences a cold sore or genital flare-up?They are reinfected by exposure to a different, but closely related herpes virus strain.Copies of herpes virus particles that have escaped the immune system periodically experience conditions that allow them to replicate and infect cells.Copies of the herpes virus genome permanently maintained in host nuclei are periodically "activated."They are reinfected by exposure to the same herpes virus strain.

Introduction Herpesviridae is a large group of DNA virus which has around 135 types found in…

Answered: What happens when a person who is…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter12: Body Defenses

Section: Chapter Questions

Problem 2TAHL

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The Ebola virus is an enveloped, helical ssRNA virus that replicates quickly. Given this information, which one of the following is a reason why Ebola infection is difficult to fight (both by our bodies and by treatments)? Question 6 options: Because it has many genes and thus replication is slow. Because it doesn't have a membrane. Because viral RNA polymerases make a lot of mistakes. Because it can integrate into the host cell DNA.
Viruses display many of the characteristics of living organisms. In particular, they reproduce, creating new virus particles. During reproduction, viruses make copies of their genetic material, and some of the copies contain mutations that are beneﬁcial to the virus. For example, HIV (human immunodeﬁciency virus), the virus that causes the disease AIDS (acquired immunodeﬁciency syndrome) mutates so often that its surface proteins change faster than we can develop antiviral drugs. New drug-resistant strains of HIV are appearing constantly. However, viruses can reproduce only after entering a living cell of an organism, because viruses hijack the cell’s machinery and use it to produce new viruses. Where does that combination of characteristics place viruses on the scale of nonlife to life? Are viruses living organisms? Nonliving? If neither of those categories ﬁts the properties of viruses, how should they be classiﬁed?
In a recent influenza epidemic, physicians were utilizing a rapid diagnostic test to determine which patients were infected with influenza type A, type B, or not infected with influenza virus. Such a test was not available in the massive 1918 outbreak that killed millions of people around the globe. How might the availability of such a test have impacted that outbreak, and why?
After a positive strand RNA virus ( Such as Coronaviruses) enters the host cell, the RNA is translated by ribosomes to create proteins associated with the virus (Such as, for example, the surface antigens like E and Spike proteins). How then, would the genetic material itself be replicated to be incorporated into the new viruses?.
Penicillin is an antibiotic that acts by inhibiting the formation of peptidoglycan cross-links in a cell wall. Based on what you know about the nature of viruses and bacteria, will penicillin effectively kill the rhinovirus or coronavirus? Please explain your reason
Describe the lysogenic cycle of a virus. What is the difference between the lytic and lysogenic cycle of a virus? What are vaccines? Define the words “Emerging Virus” and “Pandemic”. Give examples of human diseases caused by viruses. What is a prion and viron? Are prion and virons viruses? Give examples of human or animal diseases caused by prions and what organisms are affected. Book: Biology (Campbell) 11 edition Urry. Cain. Wasserman. Minorsky. Reece
The question is: Your doctor has told you that you were recently infected with a PROVIRUS, and no matter what you do, the virus will always be in your body. Explain why a provirus will always remain within your body
A bacteriophage has inserted its DNA into a bacterial host and replicated as a part of the host’s genome for several generations as the host reproduces. For this virus to assemble more infectious viral particles, what must it do? Switch to the lysogenic cycle of replication Switch to the vicious cycle of replication Purposefully mutate its own genes Switch to the lytic cycle of replication
You are a scientist developing a vaccine against a newly discovered animal virus. What part of the virus would you target your vaccine against and why?
. Rotavirus, a disease-causing member of the Reovirus family (with double-stranded RNA, but no DNA), must use which of the following enzymes to replicate its nucleic acid? RNA-dependent-RNA-polymerase RNA-dependent-DNA-polymerase DNA-dependent-RNA-polymerase DNA-dependent-DNA-polymerase reverse transcriptase
Which of the following happens to the viral nucleic acid during a lysogenic cycle cycle? a-the viral DNA immediately takes over the host cell genetic material b-it bursts the host cell c-the viral DNA forms a provirus d-the viral DNA is used to attach the bacteriophage to the host cell`s receptors
What are the immune responses to viral infections? What is the difference between epidemic and pandemic? The “Spanish Flu” in 1918 was caused by the H1N1 influenza virus. What do the “H” and “N” stand for?

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