Weekly detections of COVID-19, influenza and RSV(1) in primary care sentinel-source specimens - Influenza positivity RSV positivity SARS-Cov-2 positivity Influenza positive specimens RSV positive specimens SARS-CoV-2 positive specimens 50 2000 40 1500 30 An 1000 20 500 10 囍 得 SSS Year-week No. of sentinel detections 2020-01- 2020-15- -61-0Z0Z 2020-21 - 2020-25- 2020-27 - 2020-29- % positive

Q: A virologist develops a drug that specifically targets step 5 of the reproductive cycle of an…

A: The viral life cycle consists of six  stages such as -   (i) Attachment  (ii) Penetration  (iii)…

Q: Why does AZT work initially to lower the blood titers of HIV virions in infected patients' blood:…

A: Zidovudine  also known as azidothymidine (AZT), is an antiretroviral medication used to prevent and…

Q: The herpes virus is a very large family of viruses which can cause human infections. There are many…

A: Virus are obligate parasites which needs a host to support its growth .

Q: Students are debating about differences between viruses and cells. Which student’s argument is MOST…

A: Viruses are the connecting link between living and nonliving kingdom. So they are not regarded as…

Q: draw the Structure of the AIDS virus

A: HIV is a retroviridae Lentivirus that causes Acquired immune deficiency syndrome [AIDS]. the virus…

Q: A patient is diagnosed with a viral infection, and the doctor wants to determine whether the virus…

A: Viruses causes various diseases in animal, human and plants. They are intracellular parasites.…

Q: Briefly describe the events leading to the synthesis of viral proteins. Begin with the genome;…

A: It has been proposed that RNA was the earliest genetic material in primitive living forms. The DNA…

Q: Name the three way you can initiate RNA synthesis and name a virus that uses this strategy

A: There are three phases/steps of transcription: initiation, elongation and termination. It is easier…

Q: What are the different viral shapes and the different types of genomes they can have? Be very…

A: Viruses These are acellular microorganisms. They lack organelles, ribosomes, and plasma membrane.…

Q: Virology:Describe how to make an attenuated virus vaccine by briefly describing each step(1-4) in…

A: Live and attenuated vaccines are  obtained from “wild” viruses or bacteria. By the help of repeated…

Q: Briefly explain why all viruses with a RNA genome (excluding retroviruses) must produce their own…

A: RNA polymerase is a protein that converts DNA sequences into RNA and then synthesizes new strands of…

Q: Is a Virus considered living or non-living? Justify your answer and Give one example of a virus

A: Introduction  Microorganisms known as viruses are infectious agents that are minute in size and…

Q: _____ mRNA is synthesized before replication of the viral nucleic acid.

A: The nucleic acid is the genetic material in the virus. The virus can have either DNA or RNA. Both…

Q: The size of a virus is approximately 10 raised to the power of (a) ________ meters

A:

Q: Explain how a drug that blocks DNA recombination would affect the life cycle of HIV. Be as specific…

A: A virus causes HIV infection. By harming cells known as CD4 T cells, it targets and eventually…

Q: Diagram 1 Diagram 2 Students are debating about differences between viruses and cells. Which…

A: Need to find the best option from the four options about cells and virus.

Q: virus does not have all of the parts that are needed to survive and reproduce. The Dody" of a virus…

A: Structure of VirusesViruses vary in their structure. an epidemic particle consists of DNA or RNA…

Q: A naked (non-enveloped) virus ONLY has a/an O nucleocapsid O envelope O antigenic surface O caporite…

A: The viruses are classified as both living as well as non-living. When they are present outside of…

Q: Give some example of animal viruses.

A: Viruses are microscopic agents that can replicate only inside host cells. They can infect all types…

Q: What is a virus? How do they differ from other infectious microorganisms? Make sure to explain each…

A: Virus are obligate parasites.  These are basically DNA or rna molecules with a protein coat .

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: The Baltimore classification and taxonomy of viruses is based on _______________, ________________,…

A: Virus is a microscopic organism which contains a protective coat and the nucleic acid. It doesn’t…

Q: Explain why there is such a controversy about whether viruses are living or non-living. Briefly…

A: Viruses have been a point of debate since they were discovered. Their name virion also means poison,…

Q: Discuss how the components of viruses assemble to make new virus particles. What is the difference…

A: The viruses consist of two parts, primarily which include nucleoid and capsid. Assembly of nucleoid…

Q: What is the difference between sequential and concerted assembly? Herpes viruses sequential assembly…

A: Flu Viruses (Influenza)   Flu infections have a place with the Orthomyxoviridae family and are named…

Q: Explain the Size comparison of viruses with a eukaryotic cell (yeast) and bacteria.

A: Viruses are particles that become metabolically active inside the host cell only.

Virus

Viruses are infectious microscopic agents that can only reproduce in live cells of animals, plants, or microbes and are smaller than bacteria. Vertebrates, invertebrates, plants, protists, and fungi are among their many hosts. Viruses are unable to multiply on their own due to the lack of necessary cellular machinery, but they can guide the cell machinery of a host to make additional viruses by infection. The virus enters and attaches to a particular host cell, injects its genetic material, and reproduces by using the host’s genetic material. Viruses cause infection by taking entry into the host cell and using the host cell’s enzymes and raw materials to multiply.