SARS-CoV-2 is more contagious in humans than SARS because it has been shown that     SARS-CoV-2 emerged from bats that were superspreaders.     SARS-CoV-2 was derived from SARS by antigenic shift.     There are more than 1 correct answers in the other choices     if X number of SARS-CoV-2 particles would infect Y number of respiratory epithelial cells, higher (than X) number of SARS particles would be required to infect Y number of the same cells.

Q: Human bodies make more different varieties of antibodies than they do different Toll-like receptors.…

A: Humans have immune systems that defend the body from disease-causing microorganisms. The first line…

Q: recent study showed that CYKNK-001 infusions saved a SARS-COV-2 patient. Based on your knowledge of…

A: Natural killer cells are are cytotoxic, granular lymphocytes that are important part of the innate…

Q: Some species, like camels, alpacas, and llamas, have evolved variant forms of immunoglobulin…

A: Antigens activate your immune response, causing it to unleash an antibody response. Antibodies…

Q: strep throat is the presence of swollen lymph nodes in the neck. This symptom usually peaks about…

A: The bacterial infection of the throat and tonsils is caused by the group A streptococcus. They…

Q: If I have been exposed to an infectious microbe for the second time, which of the following…

A: Immunoglobins or Ig are released by the B-lymphocytes or B-cells and responsible for binding with…

Q: explain if SARS-CoV-2 is caused by an antigenic shift or an antigenic drift.

A: Antigenic drift is a kind of genetic variation in viruses, arising by the accumulation of mutations…

Q: People can also get tested for the presence of SARS-CoV-2 antibodies. Explain how an individual…

A: The coronavirus virus, which causes coronavirus illness, 19 (COVID-19). The coronaviruses are a…

Q: VSV-GFP- SARS-CoV VSV-GFP- SARS-CoV-2 U Plaque Day 3 (duplicate) 1.51 1.0- 0.5- 0.0 VSV-GFP-…

A: In virology, spike protein or peplomer protein is the type of protein complex with the large…

Q: All of the following can be a direct result of antigen- antibody binding EXCEPT: Opsonization of…

A: Disclaimer: Since you have posted multiple questions, we will provide the solution only to the first…

Q: Compare and contrast SARS COV-2 and. Influenza Type A Virus with respect to the following…

A: SARS COV-2 Virus: It is a coronavirus variant that produces the respiratory disease which is causing…

Q: T cell phenotype found around blood vessels in post-mortem analyses of the human brain is- Treg CD8+…

A: The central nervous system (CNS) is classically viewed as immune-privileged; however, recent…

Q: Using info on the SARS-CoV-2 mutations, state how the occurrence of these mutated strains would…

A: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel severe acute respiratory…

Q: When an antibody binds to the spike protein of SARS-CoV-2, it may block access of the spike protein…

A: Our immune system is  strong enough to fight with the viruses as well as bacteria. Their Prime…

Q: Select the most accurate answer: HHV-8: A. Is a human herpesvirus B. Affects the immunosuppressed…

A: human herpesvirus 8 - A type of virus that causes Kaposi sarcoma (rare cancer in which lesions grow…

Q: O IgA O IgG O IgM O IgE constitutes about 80% of circulating antibodies in plasma.

A: The correct Option for the answer tot htis question is Option B:- IgG. IgG constitutes about 75-80%…

Q: Vhich of the following enables almost all cells of the body to be recognized by an individual's…

A: The immune system is a complicated physiological system comprised of several organs, tissues, and…

Q: Over the past year we have endured the Covid-19 pandemic. Accumulating evidence suggests that the…

A: Immmune system is a very important tool for fighting off the infection. The main features of immune…

Q: vaccine known as bacillus calmette guerin bcg is used. it is not used in the united states. every…

A: The Bacillus Calmette-Guérin (BCG) vaccine is a vaccine used to prevent tuberculosis (TB). It is…

Q: You are a nurse caring for a patient with a pulmonary (lung) mold infection, The mold represents a…

A: Please Note: Hi! Thanks for your question. As you have posted multiple questions and have not…

Q: One of the following Igs is coexpressed with IgM on B cell surface Select one: IgG IgE IgA IgD

A: B cells They are a type of WBCs that are called B lymphocytes. The main function of these cells is…

Q: A number of vaccines against the SARS-CoV-2 virus (which causes COVID) are currently in use. Based…

A: Acquired immunity- a type of immunity that is not present by birth but is developed over a lifetime.…

Q: SARS-CoV-2 binds, or attaches, to specific proteins on the surface of a cell. These proteins are…

A: SARS-CoV-2 particles, like other coronaviruses, are spherical and have proteins called spikes…

Q: Even though the oral polio vaccine is not used in the developed world, it is still widely used in…

A: Poliomyelitis is an infectious disease. It is caused by the poliovirus. It is the most enduring…

Q: Answer the following questions in relation to these screening test results for healthcare workers in…

A: The respiratory disease COVID-19 (coronavirus disease 2019), which is the source of the continuing…

Q: Briefly describe the role of the immune response in the development of severe complications of…

A: SARS-CoV-2 It is severe acute respiratory syndrome coronavirus. It causes flu-like symptoms such as…

Q: Based on the graph below, which of the following statements are true? Select all that apply. 107…

A: Acquired immunodeficiency virus (AIDS) is caused by the human immunodeficiency virus (HIV), which…

Q: A 150₁ 100- Cell-to-cell transmission (Relative, %) U D SARS-CoV SARS-CoV-2 Cell-to-cell…

A: Covid Pandemic Covid-19 is the recent cause of pandemics globally. It is a viral infectious disease…

Q: SARS-CoV (P SARS-CoV-2 ( 48 h G 1201 Cell- Cell- 100 I Percentage (%) 80 60- 40- 20- SARS-CoV (PV)…

A: SARS-CoV-2 is a novel beta-coronavirus that is closely linked to SARS-CoV and MERS-CoV, two previous…

Q: H1N1 and H5N2 can undergo an antigenic shift. The H and N genes are independent gene segments. What…

A: Antigenic drift signifies the mixing of different inflenza genes from different species.  Influenza…

Q: At time point A, the patient's IgG titer against antigen X is 1:6, the patient's IgM titer to the…

A: The immune system is a complex network of cells, tissues, and organs that work together to defend…

Q: What are the conspiracies and myths about SARS CoV-2 vaccination ?

A: Coronavirus Coronaviruses are named for the crown like spikes on their surface. "corona" in Latin…

Q: aracterize this labeled immunoassay. Choose all that apply. competitive noncompetitive heterogeneous…

A: Immunoassay is an immunological technique where antigens or analyte is detected. Their detection can…

Q: What scenario best describes an autoimmune reaction? Group of answer choices The destruction of…

A: The destruction of donated RBC by the recipient immune system is a hemolytic transfusion reaction.…

Q: Question 8 Bulbar polio is a which specific type? O Asymoptomatic O Nonparalytic O Minor polio O…

A: Polio or poliomyelitis caused by the poliovirus which in some cases moves from gut to the central…

Q: How could you design a new SARS-CoV3 vaccine that elicits broad immunity with B cell memory to…

A: SARS-CoV-2, the virus that causes COVID-19, first appeared in China in late 2019. Since then, it has…

Q: All plaques contain a clonal population of phage. True or false

A: What is the clonal population of phage - A clonal population is a group of individuals which do not…

Q: There are serum samples from people who tested positive for the SARS-CoV2 virus and have now…

A: After infection, B cells become activated through various pathways( directly or indirectly ) and…

Q: Is the antigenic determinant reducing or non-reducing?     reducing     non-reducing     both…

A: Monosaccharides are linked together by chemical bonds to form these Glycan chain-like structures.…

Q: The following are the stages in the development of cystic acne. Place them in order and indicate…

A: The figure given in the second question is not clear, please post it separately.              Cystic…

Respiratory Infections

Respiratory infections are infectious diseases of the respiratory tract that are mostly caused by bacteria and viruses. They cause infections of the throat, sinuses, airway path, and lungs. Respiratory infections are typically divided into two types: upper tract respiratory infection and lower tract respiratory infection.