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Topic: HIV

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In the News (Fri 21 Jun 19)

  HIV InSite Gateway to HIV and AIDS Knowledge
The Status of Pediatric HIV in the United States and the Developing World
What kinds of HIV screening tests are available in the United States?
HIV InSite is a project of the UCSF Center for HIV Information.
hivinsite.ucsf.edu   (220 words)

  HIV - Wikipedia, the free encyclopedia
HIV also directly attacks organs such as the kidneys, heart and brain, leading to acute renal failure, cardiomyopathy, dementia and encephalopathy.
HIV has been found at low concentrations in the saliva, tears and urine of infected individuals, but the risk of transmission by these secretions is negligible.
One of the major characteristics of HIV is its high genetic variability as a result of its fast replication cycle and the high error rate and recombinogenic properties of reverse transcriptase.
en.wikipedia.org /wiki/HIV   (7730 words)

 HIV - Medical Encyclopedia   (Site not responding. Last check: 2007-10-27)
The human immunodeficiency virus (HIV) is a frequently mutating retrovirus that attacks the human immune system and which has been shown to cause acquired immune deficiency syndrome (AIDS).
HIV was discovered and identified as the agent for AIDS by Luc Montagnier of France in 1984.
HIV is the virus which damages the host such that it leads to immunedeficiency.
www.nursingstudy.com /encyclopedia/HIV.html   (948 words)

HIV causes a reduction of the number of T-cells in the body, eventually resulting in an increased risk of disease.
HIV enters the body -- through the usual means of unsafe sex, sharing contaminated needles, blood transfusions or from mother to child (vertical infection)and waits to bump into its host cell; the T-cell.
The cell's nucleus commands the cell to reproduce HIV, and soon the building blocks for the new HIV viruses are produced in the cell, in the form of chains of coat proteins and RNA.
bioweb.wku.edu /courses/BIOL115/Wyatt/HIV/HIV.htm   (716 words)

HIV can be transmitted through direct contact with the blood or body fluid of someone who is infected with the virus.
HIV is transmitted through direct contact with the blood or body fluid of someone who is infected with the virus.
In very rare cases, HIV has also been transmitted by direct contact with an open wound of an infected person (the virus may be introduced through a small cut or tear on the body of the healthy person) and through blood transfusions.
kidshealth.org /parent/infections/std/hiv.html   (3437 words)

 HIV Infection and AIDS
HIV frequently is spread among injection drug users by the sharing of needles or syringes contaminated with minute quantities of blood of someone infected with the virus.
Because many people infected with HIV have no symptoms, there is no way of knowing with certainty whether a sexual partner is infected unless he or she has been repeatedly tested for the virus or has not engaged in any risky behavior.
The risk of HIV transmission from a pregnant woman to her fetus is significantly reduced if she takes AZT during pregnancy, labor and delivery, and her baby takes it for the first six weeks of life.
www.webmd.com /content/article/5/1680_50172.htm   (2674 words)

 HIV Tutorial
HIV has the additional ability to mutate easily, in large part due to the error rate of the reverse transcriptase enzyme, which introduces a mutation approximately once per 2000 incorporated nucleotides.
Presence or emergence of different HIV subtypes may also account for the appearance of antiretroviral drug resistance as well as the variability in pathologic lesions as different cell types are targeted or different cytopathic effects are elicited during the course of infection.
HIV can be present in a variety of body fluids and secretions, but the presence of HIV in genital secretions and in blood, and to a lesser extent breast milk, is significant for spread of HIV.
www-medlib.med.utah.edu /WebPath/TUTORIAL/AIDS/HIV.html   (3162 words)

 [No title]   (Site not responding. Last check: 2007-10-27)
These are a subset of leukocytes (white blood cells) that normally coordinate the immune response to infection.
Patients today are given a complex regime of drugs that attack HIV at various stages in its life cycle.
Protease inhibitors (PIs) inhibit activity of protease, an enzyme used directly by HIV to cleave nascent viral proteins, and so prevent final assembly of HIV virons.
wikiwhat.com /encyclopedia/h/hi/hiv.html   (979 words)

 MedlinePlus Medical Encyclopedia: HIV infection
HIV infection is a viral infection caused by the human immunodeficiency virus (HIV) that gradually destroys the immune system, resulting in infections that are hard for the body to fight.
Acute HIV infection may be associated with symptoms resembling mononucleosis or the flu within 2 to 4 weeks of exposure.
HIV is a chronic medical condition that can be treated, but not yet cured.
www.nlm.nih.gov /medlineplus/ency/article/000602.htm   (809 words)

But as HIV destroys these lymphocytes, people with the virus begin to get serious infections that they normally wouldn't — that is, they become immune deficient.
HIV can be transmitted from an infected person to another person through blood, semen (also known as "cum," the fluid released from the penis when a male ejaculates), vaginal fluids, and breast milk.
If a woman with HIV is pregnant, her newborn baby can catch the virus from her before birth, during the birthing process, or from breastfeeding.
kidshealth.org /teen/sexual_health/stds/std_hiv.html   (1130 words)

 Does HIV Exist? - August 2000
HIV happens to be somewhat sensitive to gradient centrifugation and undergoes minor structural changes (discussed in detail below) so that electron micrographs (photographs of the virus under an electron microscope) do not have all the characteristics of the virus viewed without gradient ultracentrifugation.
This is the strongest possible proof of the existance of HIV and the one that is pointed to by Duesberg in his claim for the prize.
As HIV is a retrovirus, I will leave it to the reader to consider the problem for Virusmyth in explaining where, exactly, retroviral DNA found in the virions comes from.
www.aegis.org /topics/hiv_exist.html   (4700 words)

 HIV Infection: Attachment and RNA Entry
There are at least two receptors on T-lymphocytes to which the human immunodeficiency virus (HIV) sticks.
HIV infection of a lymphocyte requires attachment of the virus to the cell membrane through both of these "ligand-receptor" links.
In cells whose "7-transmembrane receptor" is different, the HIV "key" no longer matches the lymphocyte "lock" and attachment is incomplete.
www.cellsalive.com /hiv1.htm   (179 words)

 SFCC :: STD Basics : HIV/AIDS
HIV is transmitted from person to person via exchange of bodily fluids - semen, blood, and vaginal fluids - during anal, vaginal, and possibly oral sex, or when sharing needles during intravenous drug use.
A rapid HIV test was approved by the FDA in November 2002.
City Clinic provides free confidential HIV testing to people considered by clinicians to be at high-risk for HIV.
www.dph.sf.ca.us /sfcityclinic/stdbasics/hivaids.asp   (1212 words)

 American Social Health Association - Learn about STDs/STIs
HIV is the virus that causes AIDS (Acquired ImmunoDeficiency Syndrome).
HIV can be transmitted through the blood, sexual fluids (semen, preseminal fluid, or vaginal fluid) or breast milk of an HIV-infected person.
HIV counselors can provide you with important information about the test, discuss your risks for HIV, answer your questions about your risk for HIV and how to protect yourself and others in the future.
www.ashastd.org /learn/learn_hiv_aids.cfm   (2236 words)

There are far fewer cases of HIV transmission attributed to oral sex than to either vaginal or anal intercourse, but oral-genital contact poses a clear risk of HIV infection, particularly when ejaculation occurs in the mouth.
HIV is not an easy virus to pass from one person to another.
Detailed HIV prevention information for drug users who continue to inject is available from the CDC's National Prevention Information Network at 1-800-458-5321 or online at www.cdc.gov/idu.
www.amfar.org /cgi-bin/iowa/abouthiv/record.html?record=3   (2877 words)

 HIV/AIDS - MayoClinic.com
The virus and the infection itself are known as HIV.
The term acquired immunodeficiency syndrome (AIDS) is used to mean the later stages of an HIV infection.
Worldwide, an estimated 38.6 million people are living with HIV, nearly half of them women and girls between the ages of 15 and 24.
www.mayoclinic.com /health/hiv-aids/DS00005   (327 words)

 Human Test: Novel Vaccine Stops HIV
The vaccine is made from a patient's own dendritic cells and HIV isolated from the patient's own blood.
All had HIV infection for at least a year.
After getting three under-the-skin injections of the tailor-made vaccine, the amount of HIV in the patients' blood (called the viral load) dropped by 80%.
www.webmd.com /content/Article/97/104268.htm   (367 words)

HIV (human immunodeficiency virus) is the virus that causes AIDS (acquired immunodeficiency syndrome).
Before blood was screened for evidence of HIV infection and before heat-treating techniques were introduced to destroy HIV in blood products, such as factor 8 and albumin, HIV was transmitted through transfusions of contaminated blood or blood components.
It is rare, however, for a patient to give HIV to a health care worker or vice-versa by accidental sticks with contaminated needles or other medical instruments.
www.labtestsonline.org /understanding/conditions/hiv.html   (444 words)

 HIV definition - HIV: health and medical information about HIV and AIDS
HIV: Acronym for the Human Immunodeficiency Virus, the cause of AIDS (acquired immunodeficiency syndrome).
HIV has also been called the human lymphotropic virus type III, the lymphadenopathy-associated virus and the lymphadenopathy virus.
Although the American research Robert Gallo at the National Institutes of Health (NIH) believed he was the first to find HIV, it is now generally accepted that the French physician Luc Montagnier (1932-) and his team at the Pasteur Institute discovered HIV in 1983-84.
www.medterms.com /script/main/art.asp?articlekey=3769   (227 words)

 HIV Infection and AIDS
Human Immunodeficiency Virus (HIV) presents a complex knot for scientists to unravel.
These pages attempt to simplify HIV infection at the cellular level.
The following diagram shows a number of steps from initial attachment of a viral particle to a lymphocyte through budding of new viruses from that cell.
www.cellsalive.com /hiv0.htm   (125 words)

 HIV and AIDS information on how HIV is transmitted at MedicineNet.com
Should patients with the "flu"- or "mono"-like illness of primary HIV infection be treated?
In 1983, researchers in the United States and France described the virus that causes AIDS, now known as the human immunodeficiency virus (HIV) and belonging to the group of viruses called retroviruses.
In 1985, a blood test became available that measures antibodies to HIV that are the body's immune response to the HIV.
www.medicinenet.com /human_immunodeficiency_virus_hiv_aids/article.htm   (532 words)

 UNICEF - HIV/AIDS and children - Introduction   (Site not responding. Last check: 2007-10-27)
For too long, children have been the missing face in the HIV and AIDS response and their needs are often being overlooked.
HIV and AIDS and its impact on children continues to remain at the core of UNICEF’s work.
UNICEF seeks to make a difference in the lives of children affected by AIDS by: (1) preventing mother-to-child transmission of HIV and providing paediatric treatment, (2) preventing infection among adolescents and young people, and (3) by protecting and supporting children affected by HIV/AIDS.
www.unicef.org /aids   (292 words)

We have always believed that the best way to manage HIV is to keep the body's natural immune system as healthy as possible, and prolong the need for medications for as long as possible.
Once on HIV medications, this strategy still continues to be an integral part of HIV management, as well as managing the side effects that sometimes happen with HIV treatments.
Quality medical care is essential from experienced HIV specialists as is a person's will to live, and willingness to become their own best advocate.
www.guardianhealth.org /hiv.htm   (303 words)

 The Body: Acute HIV Infection
The normal HIV blood test will come back negative for someone who was infected very recently.
A negative HIV antibody test and a very high viral load indicate recent HIV infection, most likely within the past two months.
The number of HIV particles in the blood is much higher during acute HIV infection than later on.
www.thebody.com /nmai/acute_infection.html   (958 words)

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