1. What is a vector? What is a vectorborne disease? Can you give some examples of each?
Q: 1. "List three properties of a virus that might be used as criteria for classification (taxonomy)
A: Virus is a obligate intracellular parasites which requires living host to survive.
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A: A member of the Flaviviridae virus family is the zika virus. The Zika virus is a mosquito-borne…
Q: For viral pathogenesis, the incubation period
A: It is option a.
Q: "Briefly describe the two modes that enveloped viruses use for entry into their host cells. 2. How…
A: virus are defined as acellular infectious agents that replicate within living cells. There are three…
Q: 1. What are the five fundamental characteristics (traits) of living organisms? According to these…
A: Living world is called biotic community. It includes all the organisms ranging from unicellular to…
Q: 5. For each of the following questions, select the correct virus or viruses A. Human…
A: A virus is genetic material stored within an organic particle that infects living cells and…
Q: 1) Predict how the frequency of viruses with this deletion will change in the population over . Use…
A: Mutations arise as a natural by-product of infective agent replication.1 ribonucleic acid viruses…
Q: Discuss the advantages and disadvantages of targeted vs mass control for zoonotic malaria.
A: Malaria is also caused by the parasite knowlesi in humans. It is the first important zoonotic…
Q: 4. Write a discussion on the "Structure of Virus". (You may read chapter 17 and any other peer-…
A: Viruses are tiny obligatory intracellular parasites with a virus-coded protein sheath enveloping an…
Q: The epidemiological or disease triangle is a model of disease causation that proposes three factors…
A: Disease biology is a vast area that deals with the emergence and spread of an infectious disease.…
Q: Explain what is meant by horizontal, vertical, and vector-borne transmission of viruses.
A: Viruses are pathogenic organisms that are interesting as they lie on the line of living and…
Q: Describe the 5 steps of viral infection process. During the synthesis step, what 2 major cellular…
A: The major steps in viral infection process include attachment where the virus attaches to the…
Q: 2.1. Explain the characteristics of bacteria and viruses that make them pathogens Explain how…
A: Additional explanation:Pathogenic bacteria and viruses pose significant threats to human health,…
Q: 9. Which of the following statements about influenza A virus is not correct? A. They have…
A: Influenza a virus can cause life threatening complications.
Q: A botanist notices that a tomato plant looks diseased. How could the botanist confirm that the agent…
A: Viroids considered as the smallest infectious plant pathogens .are composed solely of a short…
Q: Looking at the phylogeny below which shows the relationships between the original SARS-CoV virus and…
A: It's believed that coronaviruses, including SARS-CoV and SARS-CoV-2, have likely existed in animal…
1. What is a vector? What is a vectorborne disease? Can you give some examples of each?
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- 1. List the sequences of events in lytic and lysogenic cycles of viral infections . 2. Which cycle(s) is used by a temperate phage and how does the phage benefit from this life cycle?The epidemiological or disease triangle is a model of disease causation that proposes three factors contribute to an outbreak – an agent that causes the disease, a susceptible host, and an environment that brings the host and agent together. Some general changes within these three factors that may cause an infectious disease to emerge include: A. changes in populations or behavior of reservoir hosts or intermediate hosts B. microbial genetic mutation and viral genetic recombination or assortment C. environmental factors such as an increase in precipitation D. all of the above E. none of the above1. Throughout history there are many different types of virus that have caused impacts both small and large. Is there a possibility a virus could be considered a "good virus"? Please provide an argument for both yes and no with the use of a proper example.
- 1. Name the molecule that contributes to the shape of a capsid around a virus?7) The herpesviruses: a. Have three round of protein translation in its replication cycles, one before genome replication and two after genome replication b. Can have a persistent infection c. NoneExplain why the COVID-19 virus has been described as being sporadic, then epidemic and now pandemic. – look up the definitions of sporadic, epidemic and pandemic and relate them to COVID-19
- 17. What are the three most important aspects of the infection chain?4. Describe the structure of the influenza virion. Explain how the form of the influenza genome enables the rapid evolution of novel strains that cause pandemics. Describe the replication cycle of the influenza virus. Differentiate between antigenic drift and antigenic shift.