Is there a way to create a virus that does not stimulate an immune response ? what property would such a virus has to exhibit in order to hide from immune system?
In order to create a virus that does not stimulate an immune response, following properties can be employed:
1. The virus should specifically infect cells where, immune access is minimum such as in nervous system and immunologically privileged areas.
2. The virus should not possess any surface marker which will allow it be remain hidden from the macrophages and other phagocytic cells.
Is there a way to create a virus that does not stimulate an immune response ?...
A host organism needs time, often days, to mount an immune response against a new antigen, but memory cells permit a rapid response to pathogens previously encountered. A vaccine to protect against a particular viral infection often consists of weakened or killed virus or isolated proteins from a viral protein coat. When injected into a person, the vaccine generally does not cause an infection and illness, but it effectively teaches the immune system what the viral particles look like, stimulating...
1 A. Which antigens are most important in the immune response to the influenza virus? B. Explain the difference between antigenic drift and antigenic shift in the influenza virus. C. Which is most likely to lead to a major worldwide pandemic? D. What is the role of the phenomenon of ‘original antigenic sin’ in immunity to this virus?
Create a concept map using all the listed terms: Innate immune system Adaptive immune system Specific immune response nonspecific immune response neutrophils histamine lysozyme skin phagocytic cells cytokines antimicrobial proteins granulocytes natural killer cells CD8 T cells CD4 T cells PAMP leukocytes Bile Microbiota Cytotoxic T cell B cell Antibodies
How does HIV evade the immune system? What cell does it “Hide” in?
The following products of the immune system are important for recovery from viral infections: antibodies, interferons alpha and beta, NK cells, interferon gamma What is the order in which these elements typically appear in response to virus infection? Which are products of the innate immune system and which are products of the adaptive immune system?
Why does the primary adaptive immune response take longer to manifest than the innate immune response? (in details please)
What’s the difference between a primary immune response and secondary immune response? Answer both in terms of the physiological responses and in terms of the mechanism by which it is achieved. Adaptive immunity is a response to a specific antigen. How does the adaptive immune system mount a specific response to an invading antigen? How is it possible to mount such a response to a wide array of antigens?
PROJECT Modeling the Dynamics of Viral Infections A patient is infected with a virus that triples its numbers every hour. The immune system eventually kicks in and reduces the replication rate by a factor of in addition to kill ing 500,000 virus particles per hour, but this doesn't happen until the viral load reaches two million copies. To combat the infection, the infected person receives hourly doses of an antiviral drug. This drug further reduces the replication rate, to a...
Learning Outcomes 1. Describe the nature and characteristics of antigens and how they stimulate the immune system. Understand the role of the Major Histocompatibilty Complex (MHC) in antigen processing. Differentiate autoantigens from alloantigens. 2. 3.
What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?