2. What is the structure of SARS-CoV-2 virus? What are the immune responses to COVID-19 infection? What is the cytokine storm? What are B cell and T cell responses? Which antibody is produced first, and which 2-3 weeks after COVID-19 infection?

APCs travel to the lymph nodes via the lymph vessels, to present the infection to the 5. & 6. cells?

6. What cell secretes antibodies and explain the various functions of antibodies.?

1. What are the target cells of SARS-CoV-2? What do these cells have in common?

1. "Which of the following statements is/are true? The only region in the body where a virus‐infected cell can interact with T cells is in the lymph nodes.Virion surface proteins tend to elicit a stronger immune response during the course of natural infection than do internal components of the virion.Epitope‐containing antigens must be digested to single amino acids and reassembled at the surface in the presence of histocompatibility antigens in order to provoke immunity. 2. Why are soluble antibodies (the products of the humoral response) good antiviral agents? 3. What are the roles of the following cells in the vertebrate immune response? B cellsHelper T cells (CD4+)Cytotoxic T cells (CD8+)"

21. What are two ways by which SARS-CoV-2 disguises itself from detection by its host-cell's immune system? AND What is the escape structure it uses to leave its host cell?

6. Explain the four ways acquired immunity is transmitted?

10. What specific kinds of host cells do helper T cells respond to?

7. Describe the phenomenon of clonal selection as it pertains to B lymphocytes. Make sure to mention MEMORY, DIVERSITY and why the response is considered to be ACQUIRED.

1. If the human body can successfully fight off the mumps virus, why is it hard to fight AIDS? 2. What cells that fight disease are always present in the body? What cells or parts of cells are produced after the disease-causing virus enters the body? 3. What are some different ways the body develops immunity to a disease? 4. Where are scientists in the process of developing a vaccine for HIV?