What is the mechanism by which the AIDS virus causes deficiency of immune system of the...
What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
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What is the mechanism by which the AIDS virus causes
deficiency of immune system of the...
The human immunodeficiency virus (HIV) causes AIDS, a disease of the immune system that culminates in...
The human immunodeficiency virus (HIV) causes AIDS, a disease of the immune system that culminates in death. To mount a successful invasion, the HIV virus must bind to a protein known as CCR5 that resides on the surface of immune cells. Individuals that are homozygous for a deletion of the CCR5 gene are completely protected from HIV infection. The CCR5 gene is transcriptionally silenced by Xp1, a negative regulator of CCR5 that is expressed everywhere but the immune system. Given...
As of 2005, the number of people living worldwide with Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome...
As of 2005, the number of people living worldwide with Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) was estimated at 40 million, with 5 million new infections per year and 3 milliondeaths due to the disease {UNAIDS, 2005). Currentlythere is no known cure for the disease, andHIV cannot be completely eliminated in an infectedindividual. Drug combinations can be used to maintain the virus numbers at low levels, which helps prevent AIDS from developing. A common treatment for HIV is the...
1. AIDS-Acquired Immune Deficiency Syndrome 2. NHL-Non-Hodgkin Lymphoma 3. HAART - Highly Active Antiretroviral Therapy 4....
1. AIDS-Acquired Immune Deficiency Syndrome 2. NHL-Non-Hodgkin Lymphoma 3. HAART - Highly Active Antiretroviral Therapy 4. HD - Huntington Disease 5. HIV-Human Immunodeficiency Virus 6. IgA-Immunoglobin A 7. KS - Kaposi's Sarcoma 8. SCID-Severe Combined immunodeficiency Disease a. Use of combinations of drugs that are effective against AIDS b._ Malignant tumor of lymph tissue in spleen and lymph nodes; Reed-Sternberg cellis often found on microscopic analysis C. Malignant condition associated with AIDS; dark-colored skin nodules appear d. e. Group of...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
Is there a way to create a virus that does not stimulate an immune response ?...
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?
A test for the presence in the blood of antibodies to HIV, the virus that causes...
A test for the presence in the blood of antibodies to HIV, the virus that causes AIDS, gives a positive result with probability about 0.004 when a person who is free of HIV antibodies is tested. This is called a false positive. A clinic tests 5000 people who are all free of HIV antibodies. What is the probability that between 10 and 15 people in this sample will receive a false positive reading?
A test for the presence in the blood of antibodies to HIV, the virus that causes...
A test for the presence in the blood of antibodies to HIV, the virus that causes AIDS, gives a positive result with probability about 0.004 when a person who is free of HIV antibodies is tested. This is called a false positive. A clinic tests 5000 people who are all free of HIV antibodies. What is the probability that between 10 and 15 people in this sample will receive a false positive reading?
7. Which of the following disease is caused by a virus a) Herpes b) AIDS c)...
7. Which of the following disease is caused by a virus a) Herpes b) AIDS c) Gonorrhea d) Chlamydia (e) Both a and b 8. All the following are true about cystitis, except a. a bladder infection b. It is common among otherwise healthy women c. It is caused in 80-90 % cases by Serratia species d. It is common nosocomial infection 9. Which of the following is true about HIV? a. The virus can attack a variety of cells,...
Topic is AIDS 1.) Describe the activity of our immune system against the pathogen 2.) What...
Topic is AIDS 1.) Describe the activity of our immune system against the pathogen 2.) What types of medical treatments exist? Describe how these treatments affect the progression of the disease. 3.) Describe prophylactic measures that can be taken to limit the risk of infection.
PROJECT Modeling the Dynamics of Viral Infections A patient is infected with a virus that triples...
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...
1. AIDS-Acquired Immune Deficiency Syndrome 2. NHL-Non-Hodgkin Lymphoma 3. HAART - Highly Active Antiretroviral Therapy 4. HD - Huntington Disease 5. HIV-Human Immunodeficiency Virus 6. IgA-Immunoglobin A 7. KS - Kaposi's Sarcoma 8. SCID-Severe Combined immunodeficiency Disease a. Use of combinations of drugs that are effective against AIDS b._ Malignant tumor of lymph tissue in spleen and lymph nodes; Reed-Sternberg cellis often found on microscopic analysis C. Malignant condition associated with AIDS; dark-colored skin nodules appear d. e. Group of...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
7. Which of the following disease is caused by a virus a) Herpes b) AIDS c) Gonorrhea d) Chlamydia (e) Both a and b 8. All the following are true about cystitis, except a. a bladder infection b. It is common among otherwise healthy women c. It is caused in 80-90 % cases by Serratia species d. It is common nosocomial infection 9. Which of the following is true about HIV? a. The virus can attack a variety of cells,...
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...
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