Using the design and key of the figure as a model, select all statements that represent changes that occurred when the novel coronavirus appeared in the population. There was protection for the most vulnerable people in the population due to herd immunity. O Complex chains of disease transmission (red arrows) appeared. There were more unvaccinated people (gray), more infected people (red), and no vaccinated people (blue) in the population. O There was community spread of the infectious disease due to a lack of herd immunity. O Disease outbreaks were contained due to herd immunity.

Q: As a general rule, viruses are not considered to be alive based on several reasons. One such reason…

A: Viruses are small, microscopic organisms that contain either RNA or DNA as their genetic material.…

Q: Which of the following human diseases is caused by a virus that requires reverse transcriptase to…

A: The virus is the connecting link between living and non living. Most of the animal viruses are RNA…

Q: HIV   - is a virus with RNA as the genomic material   - is a retrovirus that reverse-transcribes…

A: HIV (human immunodeficiency infection) is a retrovirus that attacks the host immune system. In the…

Q: viruses. What is a prion and viron? Are prion and virons viruses? Give examples of human or…

A: ANSWER) Some of the human diseases caused by viruses are: AIDS caused by HIV virus Influenza caused…

Q: Discuss why viruses are not always bad

A: It is true that most viruses have a pathogenic relationship with their hosts, which means they can…

Q: Which of the following is a known characteristic that can lead to genetic changes in some viruses?…

A: viruses need host cell machinery to replicate themselves.

Q: e pool is unsanitary and causes virus to spread. What should the parents conclude? Choose the best…

A: On the basis of transmission, diseases can be classified into communicable and non-communicable…

Q: Although a virus is very virulent now, it will eventually evolve to become much less virulent.…

A: A virus is a submicroscopic organism that contains genetic information either in the form of DNA…

Q: Which of the following statements concerning viruses and human health is false? a-in many diseases…

A: A virus is a little collection of genetic material that can be either DNA or RNA and is protected by…

Q: Through the example of the H5N1 virus, explain how diseases are fast spreading due to globalization…

A: Introduction We will answer the question in below step

Q: A fake country of Wathu has been giving a virus treatment tablet for free to poor citizens who…

A: Here a fake country is giving a virus treatment tablet for free to poor citizen and poor citizens…

Q: What aspect of an RNA virus makes it more likely than a DNA virus to become an emerging virus?

A: Answer- The viruses can have either DNA or RNA as a genetic material.

Q: Your doctor has told you that you were recently infected with a PROVIRUS, and no matter what you do,…

A: A provirus is a virus genome that is integrated into the DNA of a host cell. In bacterial cells,…

Q: /hat is true about the difference between prions and viruses?

A: Introduction:-  Virus is a microorganism that is smaller than a bacterium that  cannot grow or…

Q: All viruses can be grown in cell cultures. True False All viral infections can cause CPE. True False

A: Viruses are obligate intracellular parasites that replicate inside the host cells. Short nucleic…

Q: What large family of viruses causes respiratory infections such as the common cold? Herpesvirus…

A: Viruses are very small infectious agents, hard to see with the naked eyes. Some viruses cause very…

Q: Snow leopards are solitary animals. An individual leopard will maintain a huge territory. They meet…

A: The small, minute and microscopic organisms are called microorganisms. The main groups of…

Q: Viruses without borders" is what it means? What's the reason that viral infections are going up as…

A: Viruses without borders" means that viral infections don't respect geographical boundaries. They can…

Q: Why do scientists worry more about new strains of viruses like influenza and coronviruses as…

A: Answer: Influenza and CoV are RNA viruses which results in having higher mutation rates -- they can…

Q: provide evidence supporting or refuting the following statement: Viruses are simple cellular agents…

A: Viruses are infectious agents that contain nucleic acids (DNA or RNA) which are covered by a protein…

Q: Which of the following is not considered a cause of major epidemic diseases? Prions Bacteria…

A: Prions are infectious agents that consist of abnormal proteins which cause normal proteins to change…

Q: What virus current, past or new emerging/reemerging virus should he world be most concerned about?…

A: Viruses are very small and can not be seen with a light microscope, except for the poxvirus, the…

Q: O Bacteriophage

A: Virus is there small particles that need the host for its reproduction and prolongation.

Q: Why is conservation biology relevant to human coronavirus diseases? Because habitat destruction…

A: Conservation biology involves the conservation of natural fauna and flora from human advances or…

Q: You are arguing with one of your classmates. They say viruses are living, you say they are not. What…

A: Introduction: A virus is an infectious microorganism made up of a protein-coated segment of nucleic…

Q: Suppose that a time machine allows you to go back in time (and to travel to Australia), and you have…

A: Rabbits injected with the virus of same year will have higher survival rate because at that time…

Q: Discuss viral strategies to evolute new flu virus following the given picture Re-emergence of…

A: "Antigenic drift" and "antigenic shift" are terms used to describe how influenza A viruses change…

Q: Why would viral genome integration into host cell integration be advantageous to a virus? It…

A: Viruses can be defined as a noncellular entities which consist of either DNA or RNA ,enclosed in a…

Q: Match terms with descriptions based on the text above. You can use an answer more than once or not…

A: The terms prevalence and incidence are used to characterize the magnitude of a condition in a…

Q: How do emerging viruses arise? by the spread of existing viruses to new host species by mutation of…

A: A virus is a tiny parasite that cannot reproduce itself. Once infected with the affected cell, the…

Q: Why is it a strong evolutionary hypothesis that although viruses are the structurally simplest…

A: Viruses are the acellular entities that are considered as sub-microscopic infectious agents. They…

Q: Select all the correct statement(s) about viruses: Viruses exist in one phase both extracellularly…

A: The objective of the question is to identify the correct statements about viruses from the given…

Q: What is the continuous challenge that the influenza virus presents toscientists and public health…

A: Influenza refers to an acute respiratory illness that spreads from zoonotic reservoirs among aquatic…

Q: Answer the two questions below by reading the article 1, What was discovered in this article and how…

A: Virology is the branch of Biological Science that deals with the study of viruses. This is of utmost…

Q: The first virus studied that led to the term "filterable virus" was rabies?

A: Filterable virus is a virus that is very tiny so that they can pass through a fine-pored filter like…

Q: Which of the following statements supports the thesis that viruses are nonliving? They do not carry…

A: Virus are very tiny entities , even smaller than bacteria , microscopic structure , without any cell…

Q: A scientists collects strains of a virus from three different years: 2020, 2021, and 2022. The virus…

A: * Given that the scientist has collected strains of a virus from three years that is 2020 and 2021…

Q: Reverse transcriptase is needed to transcribe which type of viral genome into DNA? dsRNA SSDNA SSRNA…

A: Viral genome - Viral genome is defined as the genome of the virus particles. This genome can be made…

Q: True or false: positive sense RNA strands of viruses are treated like mRNA inside a host cell.

A: The meaning of a nucleic acid molecule, particularly a strand of DNA or RNA, in molecular biology…

Q: The different major groups of viruses (families) differ in: host range. the type of genetic…

A: Introduction  Virus is composed of viral capsid which is composed of proteins which also acts as…

Q: The diseases SARS, MERS, and COVID-19 are all caused by what family of viruses? Coronaviruses…

A: Viruses are obligate intracellular parasites that depend on the host for their survival. For their…

Q: Which one of the following is not true for virus, obligate intracellular parasites?     Viruses…

A: Virus is an infectious agent that replicates only inside the living cells of an organisms.They are…

Q: Which of the following statements regarding viral classification is FALSE? Question options:…

A: all these statements are true

Q: Which of the following is true about the current coronavirus global pandemic (COVID- 19)? Laboratory…

A: Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus.

Q: Emerging viruses that suddenly become apparent in causing widespread disease are actually caused by…

A: A disease is a state of unhealthiness of the physical body, mind and social interaction. A disease…

Pathogenicity

Infection and Transmission

The infections are generated by the pathogenic organisms present in the environment. They maintain the capacity to invade a host body and establish colonies. A disease caused by such infectious agents is called a communicable disease or transmissible disease. These diseases spread through diverse means including blood, food, water, air, or vectors.