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MGY378H1 Lecture : 03 - flavi - questions.docx

Yellow fever virus maintained in the wild via the sylvan cycle. Hemoraghic fever induced by dengue fever virus can occur upon first exposure to the virus. West nile virus induces neurological problems in only a minor number of infected individuals. Hep c results in a chronic infection in the majority of those infected. Most flavivirus genomic rnas lack a five prime cap. Viral rna is translated into a polyprotein in association with the plasma membrane. Prm protein functions to block the fusion activity of the virus e protein. None of hte above virus entry occurs via fusion with the plasma membrane.

Canada

Microbiology II: Viruses

Molecular Genetics and Microbiology

Alan Cochrane

University of Toronto St. George

Adaptation and Biodiversity

Plant-Microorganism Interactions and Plant Immunity

Chemistry: Physical Principles

General & Human Genetics

Introduction to General Linguistics

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Sound Patterns in Language

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Biochemistry I: Proteins, Lipids and Metabolism

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Virus-Host Interactions

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<p><p>The manner in which sindbis virus and yellow fever virus exit the cell is similar in one important way. Explain. There is an important difference between the way these two viruses exit the cell. Because of this difference yellow fever virus (a flavivirus) infected cells are less visible to the host immune system than cells infected by sindbis virus. Explain</p></p>

<p><p>How does one normally become infected with flaviviruses? What do we know about the pathogenesis of West Nile virus infection? Describe who is most at risk from this virus and why.</p></p>

<div>1.The appearance of koplik spots in the oral mucous of patients ischaracteristic of infection with what vial agent? A) hepatitis b)measles c) rabies d) yellow fever<div><br></div> <div>2. The Sabin polio vaccine uses which of the following? A)formalin-killed viruses b) live, attenuated viruses c) sythenticviruses d) none of the above</div> <div><br></div> <div>3. Which of the following has been declared by the worldhealth organization? A) Venezuelan equine encephalitis b) smallpoxc) Rift Valley fever d) Korean hemorrhagic fever</div> <div><br></div> <div>4. Which of the following is Not caused by herpes virus? A)genital lesions b) shingle c) chronic fatigue syndrome d) fifthdisease</div> <div><br></div> <div>5. Identify characteristics of this hepatitis virus: containsDNA, infections spread by contaminated body fluids, 50 to 180 dayincubation period, and anti-HbcAg-IgM indicates a recentacuteinfection? A) HAV b) HBV c) HCV d) HEV</div> </div>

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MGY378H1 Lecture : 03 - flavi - questions.docx

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