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Topic: Human immunodeficiency virus HIV


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In the News (Tue 2 Dec 08)

  
  Circumcision Status, HIV Infection and AIDS
HIV infection and vaginal douching in central Africa.
HIV infection among youth in a South African mining town is associated with herpes simplex virus-2 seropositivity and sexual behaviour.
Mounting anomalies in the epidemiology of HIV in Africa: cry the beloved paradigm.
www.cirp.org /library/disease/HIV   (5248 words)

  
 Human Immunodeficiency Virus (HIV)
Human immunodeficiency virus (HIV) causes acquired immune deficiency syndrome (AIDS), which kills or impairs cells of the immune system and progressively destroys the body's ability to fight infections and certain cancers.
HIV may also be spread through contact with infected blood, especially by sharing needles, syringes, or drug use equipment with someone who is infected with the virus.
The HIV virus may cause flu-like illness within a month or two after exposure, although there may not be any symptoms at all.
www.healthsystem.virginia.edu /uvahealth/peds_hrnewborn/hiv.cfm   (414 words)

  
 HIV (human immunodeficiency virus)
Human immunodeficiency virus (HIV) is the retrovirus that causes AIDS (acquired immune deficiency syndrome).
HIV is carried in certain body fluids, including blood, semen, vaginal secretions and breast milk, and is transmitted when virus-infected fluids contact and enter the bloodstream of another person.
HIV is usually transmitted through sexual intercourse, the sharing of contaminated needles or syringes, or from mother to infant during pregnancy, childbirth or breast-feeding.
www.antigenics.com /diseases/hiv.html   (1065 words)

  
 Human Immunodeficiency Virus (HIV)   (Site not responding. Last check: 2007-10-31)
HIV belongs to a subgroup of retroviruses known as lentiviruses, or "slow" viruses.
For instance, it is possible that blood-sucking insects might eventually become vectors of HIV although at present the chances of being infected with HIV from an insect bite are remote (See Iqbal 1999).
HIV disease is characterized by a gradual deterioration of immune function.
www.museums.org.za /bio/viruses/hiv-aids.htm   (1131 words)

  
 HIV and AIDS
The human immunodeficiency virus known as HIV causes AIDS by infecting and damaging part of the body's defenses against infection, namely the white blood cells known as lymphocytes, a type of white blood cell in the body's immune (infection-fighting) system that is supposed to fight off invading germs.
HIV is transmitted through direct contact with the blood or body fluid of someone who is infected with the virus.
If these babies do get the HIV virus, they tend to be born with a lower viral load (less HIV virus is present in their bodies) and have a better chance of long-term, disease-free survival.
kidshealth.org /parent/infections/std/hiv.html   (3437 words)

  
 Human Immunodeficiency Virus (HIV) Test
HIV infects white blood cells called CD4+ cells, which are part of the body's immune system that help fight infections.
HIV causes acquired immunodeficiency syndrome (AIDS), a long-term chronic disease that cannot be cured.
The period between becoming infected with HIV and the point at which antibodies to HIV can be detected in the blood is called the seroconversion or "window" period.
www.webmd.com /hw/hiv_aids/hw4961.asp   (1700 words)

  
 Human Immunodeficiency Virus (HIV) Infection -- Topic Overview
Human immunodeficiency virus (HIV) is a virus that attacks the immune system, making it difficult for the body to fight infection and disease.
HIV is the same virus that causes acquired immunodeficiency syndrome (AIDS), which increases a person's risk of developing certain cancers and infections.
The infection is caused by the human immunodeficiency virus (HIV).
www.webmd.com /hw/hiv_aids/hw151411.asp   (254 words)

  
 HIV Tutorial
AIDS is caused by the human immunodeficiency virus (HIV), a retrovirus of the lentivirus family that was unknown until the early 1980's, but since that time has been spread around the world to infect millions of persons.
Primary HIV infection is followed by a burst of viremia in which virus is easily detected in peripheral blood in mononuclear cells and plasma.
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)

  
 Human immunodeficiency virus (HIV)
Human immunodeficiency virus (HIV) was first isolated in 1983 and by the mid-1980s it was evident that two types of HIV, with slightly different genome structures, were circulating in human populations.
The occurrence of HIV infection increased from nil in 1986 to 19.9% in 2003.
HIV can be transmitted efficiently through blood transfusions: an estimated 95% of recipients become infected from transfusion of a single unit of infected whole blood (CDC, 1998).
staff.vbi.vt.edu /pathport/pathinfo/pathogens/HIV.html   (11301 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)

  
 Human Immunodeficiency Virus (HIV) Treatment Information Guide   (Site not responding. Last check: 2007-10-31)
HIV is frequently spread among injection drug users - by the sharing of needles or syringes contaminated with minute quantities of blood from someone infected with the virus.
HIV also can be spread to babies through the breast milk of mothers infected with the virus.
Many people infected with HIV have no symptoms and there is no way of knowing with certainty whether a sexual partner is infected unless he or she has not engaged in risky behavior, or has been repeatedly tested for the virus.
www.marylandhivtreatment.com   (1347 words)

  
 HIV structure and life cycle
In this computer generated image, the large object is a human CD4+ white blood cell, and the spots on its surface and the spiky blue objects in the foreground represent HIV particles.
HIV particles surround themselves with a coat of fatty material known as the viral envelope (or membrane).
These gather together with newly made HIV proteins and enzymes to form new viral particles, which are then released from the cell.
www.avert.org /virus.htm   (874 words)

  
 Human Immunodeficiency Virus ( HIV )
HIV is spread in travellers via sexual contact with an infected partner, through infected blood transfusions and infected blood products, and via contaminated needles.
After this period the virus can remain dormant for up to 15 years when the CD4 count begins to drop and lymphadenopathy develops.
HIV infection can resemble many symptoms and eventually, when the immune system is unable to cope, AIDS infection occurs.
www.travelhealth.co.uk /diseases/hiv.htm   (302 words)

  
 Virus Structure
Human immunodeficiency virus (HIV-1) will be discussed in detail here as an example of virus structure.
HIV is a fairly complex virus, although by no means the most complicated known.
The HIV envelope is derived from the host cell plasma membrane and is acquired when the virus buds through the cell membrane.
www.tulane.edu /~dmsander/WWW/335/335Structure.html   (1729 words)

  
 HIV Infection and AIDS: An Overview, NIAID Fact Sheet
HIV is frequently spread among injection drug users by the sharing of needles or syringes contaminated with very small quantities of blood from someone infected with the virus.
Babies born to mothers infected with HIV may or may not be infected with the virus, but all carry their mothers' antibodies to HIV for several months.
Because no vaccine for HIV is available, the only way to prevent infection by the virus is to avoid behaviors that put you at risk of infection, such as sharing needles and having unprotected sex.
www.niaid.nih.gov /factsheets/hivinf.htm   (3129 words)

  
 Simple FactSheet: HIV   (Site not responding. Last check: 2007-10-31)
When HIV has used one of these cells to grow, the cell can no longer do its job, leaving your body without a part of its immune system.
In response to HIV infection, the immune system of someone who is HIV+ produces billions of cells to fight HIV every day as well.
HIV starts a process that can be very hard to stop once it starts.
www.atdn.org /simple/hiv.html   (813 words)

  
 HIV/AIDS - MayoClinic.com
AIDS is a chronic, life-threatening condition caused by the human immunodeficiency virus (HIV).
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.
www.mayoclinic.com /health/hiv-aids/DS00005   (327 words)

  
 Human Immunodeficiency Virus (HIV Infection)
HIV is the virus that causes the acquired immunodeficiency syndrome (AIDS).
The test for HIV is a blood test which determines if the body has had an immune response to the virus.
Since the virus is passed ONLY through four body fluids, the best way to prevent HIV infection is to not come in contact with the blood, semen, vaginal fluids, or breast milk of an infected person.
www.vdh.state.va.us /epi/hivf.htm   (592 words)

  
 AIDS and HIV
The virus, which is found in the blood and other body fluids of infected individuals, attacks certain white blood cells that protect the body against illness.
Too often, people at greatest risk of HIV infection do not know their high-risk behaviors can result in HIV infection, or they are reluctant or unable to change those high-risk behaviors.
HIV in blood from an infected person can remain in a needle, syringe or other item, then be injected directly into the bloodstream of the next user.
www.idph.state.il.us /public/hb/hbaids.htm   (838 words)

  
 Human Immunodeficiency Virus (HIV) Test   (Site not responding. Last check: 2007-10-31)
Human Immunodeficiency Virus (HIV) is the virus that causes Acquired Immunodeficiency Syndrome (AIDS).
A positive test means you have been exposed to the virus and that you have become infected.
The virus is most commonly spread through sexual contact (vaginal, anal, or oral sex) and by sharing of needles or works to shoot injectable drugs.
www.med.umich.edu /1libr/aha/umstdhiv25.htm   (2032 words)

  
 Human immunodeficiency virus (HIV) .. Pathogenesis
The Human immunodeficiency virus is made up of Genetic material, Chemicals and a coating.
After binding with the CD4+ cell, the virus enters the cell and, using an enzyme called reverse transcriptase, merges its RNA with the cell's genetic material (DNA).
The person is said to be "immunocompromised" or "immunodeficient." Such people are more likely to develop unusual diseases called Opportunistic infections that they would not get if their immune systems were healthy.
www.manbir-online.com /std/hiv.1.htm   (293 words)

  
 Human Immunodeficiency Virus (HIV) Infection
Symptoms of acute retroviral syndrome (such as nausea and headache), which are the first signs of HIV infection, are often mistaken for symptoms of another viral infection.
Initial symptoms of HIV infection may be mild to severe and usually disappear on their own after 2 to 3 weeks.
Getting tested for HIV can be scary, but the condition is treatable so it is important to get tested if you think you have been exposed.
www.peacehealth.org /kbase/topic/major/hw151408/whn2call.htm   (690 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)

  
 Human immunodeficiency virus definition - HIV: health and medical information about HIV and AIDS
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 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.
Human Immunodeficiency Virus - HIV (human immunodeficiency virus) spread through sexual contact, needle sharing, labor and breast-feeding.
www.medterms.com /script/main/art.asp?articlekey=3812   (219 words)

  
 High-Risk Newborn - Human Immunodeficiency Virus (HIV)
According to the Centers for Disease Control and Prevention (CDC), HIV transmission from mother to child during pregnancy, labor, and delivery, or by breastfeeding, has accounted for 91 percent of all AIDS cases reported among US children.
Studies have found this treatment can reduce the chance of a mother's transmission of HIV to her baby from 25 percent to 8 percent.
This can help reduce the transmission of the virus to the baby.
uuhsc.utah.edu /healthinfo/pediatric/Hrnewborn/hiv.htm   (346 words)

  
 Screening: Human Immunodeficiency Virus Infection
The USPSTF makes no recommendation for or against routinely screening for HIV adolescents and adults who are not at increased risk for HIV infection (go to Clinical Considerations for discussion of risk factors).
The USPSTF concluded that the benefit of screening adolescents and adults without risk factors for HIV is too small relative to potential harms to justify a general recommendation.
Early detection of maternal HIV infection also allows for discussion of elective cesarean section and avoidance of breastfeeding, both of which are associated with lower HIV transmission rates.
www.ahrq.gov /clinic/uspstf/uspshivi.htm   (520 words)

  
 AllRefer Health - HIV Infection (Human Immunodeficiency Virus Infection)
AllRefer Health - HIV Infection (Human Immunodeficiency Virus Infection)
You are here : AllRefer.com > Health > Diseases and Conditions > HIV Infection
HIV Infection (acute HIV infection) -->early asymptomatic HIV infection -->early symptomatic HIV infection -->AIDS.
health.allrefer.com /health/hiv-infection-info.html   (411 words)

  
 ADA.org: A-Z Topics: Human Immunodeficiency Virus (HIV)
Dental professionals can access free HIV hotline (October 20, 2005)
Laser Palliation of Oral Manifestations of Human Immunodeficiency Virus Infection
Use of HIV Postexposure Prophylaxis by Dental Health Care Personnel: An Overview and Updated Recommendations
www.ada.org /prof/resources/topics/hiv/index.asp   (236 words)

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