define hiv /
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About HIV/AIDS HIV is a virus spread through certain body fluids that attacks the body’s immune system, specifically the CD4 cells, often called T cells. Over time, HIV can destroy so many of these cells that the body can’t fight off infections and disease. These special cells help the immune system fight off infections.
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- Medical Definition of Human immunodeficiency virus. Human immunodeficiency virus: HIV, the cause of AIDS. HIV has also previously been called the human lymphotropic virus type III, the lymphadenopathy-associated virus and the lymphadenopathy virus. No matter what name is applied, it is a retrovirus. (A retrovirus has an RNA genome and a reverse transcriptase enzyme.
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HIV The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS). AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.nfection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk.
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HIV and AIDS: an Overview AIDS is the acronym for acquired immunodeficiency syndrome. 1  It is the stage of HIV infection where a person's immune system is fully compromised, leaving the body open to a wide range of potentially deadly diseases known as opportunistic infections.
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AIDS The definition of AIDS has been refined as more knowledge has become available. In general it refers to that period in the infection when the CD4 count goes below 200 (from a normal count of 1,000) or when the characteristic opportunistic infections and cancers appear.
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- Definition of AIDS for Kids. : a serious disease of the human immune system in which large numbers of the cells that help the body fight infection are destroyed by the HIV virus carried in the blood and other fluids of the body. a serious disease of the human immune system in which large numbers of the cells that help the body fight infection are destroyed by the HIV virus carried in the blood and other fluids of the body.
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HIV The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and over time acquired immunodeficiency syndrome (AIDS). AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.
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Could Your Stuff Be Haunted? Ghostbusting the Creepiest Antiques In addition, some people may be able to “read” objects that are not haunted at all, Frazier says. “That’s actually a form of psychic work that people do called ‘psychometry,’ where you hold an object and you read off of it,” she explains. “A lot of people mistake that for an object being haunted.
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- : either of two retroviruses that infect and destroy helper T cells of the immune system causing the marked reduction in their numbers that is diagnostic of AIDS —called also AIDS virus, human immunodeficiency virus — compare HIV-1, HIV-2. See HIV defined for English-language learners.
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Virus HIV is one of several viruses transmitted through sexual contact and by exposure to infected blood. The range of host cells that a virus can infect is called its host range. This can be narrow, meaning a virus is capable of infecting few species, or broad, meaning it is capable of infecting many.
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Public Health AIDS, and HIV, are acronyms. AIDS stands for acquired immune deficiency syndrome. People who have AIDS have an increased susceptibility to life-threatening infections, cancers, and neurological disorders. HIV, or human immunodeficiency virus, causes AIDS. HIV can be transmitted through blood transfusion, sex, contaminated hypodermic needles, childbirth, and breastfeeding. HIV destroys the important cells in the human body that fight disease and infection.
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HIV/AIDS AIDS is a term applied to advanced HIV disease. AIDS is defined as having HIV and an opportunistic infection (an infection by a microorganism that ordinarily does not cause disease unless the immune system is weakened) normally associated with AIDS. These infections can be bacterial, fungal, viral, or parasitic.
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HIV and AIDS: an Overview View All. HIV is the acronym for the human immunodeficiency virus. It is a type of virus classified by scientists as a retrovirus, which causes disease by infecting and killing blood cells (known as CD4 T-cells) central to the body's immune system.
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- Human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV). Following initial infection, a person may experience a brief period of influenza-like illness.he late symptoms of the infection are referred to as AIDS. This stage is often complicated by an infection of the lung known as pneumocystis pneumonia, severe weight loss, skin lesions caused by Kaposi's sarcoma, or other AIDS-defining conditions.
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Overview Acute HIV infection (also known as seroconversion) is defined as the period between exposure to the virus and completion of the initial immune responses (when an antibody test becomes positive for HIV).
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HIV/AIDS Acquired immunodeficiency syndrome (AIDS) is defined in terms of either a CD4 + T cell count below 200 cells per µL or the occurrence of specific diseases in association with an HIV infection. In the absence of specific treatment, around half of people infected with HIV develop AIDS within ten years.
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What is HIV/AIDS? HIV is spread when infected bodily fluid enters the bloodstream of someone who is not HIV positive. After exposure to the virus, the risk of infection depends on the type of exposure and the amount of virus in the infected bodily fluids. Both men and women can spread the HIV virus.
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AIDS-defining clinical condition According to the CDC definition, a patient has AIDS if they are infected with HIV and have either: 1  a CD4+ T-cell count below 200 cells/µL. 2  a CD4+ T-cell percentage of total lymphocytes of less than 15%.  or one of the defining illnesses.
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HIV AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype.nfection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.
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HIV Treatment as Prevention Viral load refers to the amount of HIV in the blood. An undetectable viral load is when the amount of HIV in the blood is so low that it can’t be measured. Antiretroviral therapy (ART) reduces viral load, ideally to an undetectable level, when taken consistently and correctly.
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- The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS). AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype.
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What Are HIV and AIDS? Opportunistic infections or cancers take advantage of a very weak immune system and signal that the person has AIDS. Learn more about the stages of HIV and how to know whether you’re infected. What Is HIV? HIV stands for human immunodeficiency virus. It is the virus that can lead to acquired immunodeficiency syndrome, or AIDS, if not treated. Unlike some other viruses, the human body can’t get rid of HIV completely, even with treatment. So once you get HIV, you have it for life. HIV attacks the body’s immune system, specifically the CD4 cells (T cells), which help the immune system fight off infections. Untreated, HIV reduces the number of CD4 cells (T cells) in the body, making the person more likely to get other infections or infection-related cancers.
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- Medical Definition of AIDS. AIDS: Acquired immunodeficiency syndrome, a syndrome caused by infection with the human immunodeficiency virus (HIV), with ensuing compromise of the body's immune system.
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- Noun. 1. HIV-infection by the human immunodeficiency virus. viral infection, virus infection-infection by a virus that is pathogenic to humans.
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- How many fish species are there? The first global census of life in the sea has logged some 230,000 species, however a ten year study on the subject performed by over 300 scientists warns of mass extinctions. This ten year study has been the largest, most extensive study to attempt a stab at that age old question “Just how many fish are there in the sea?”. The ten year study, which was published today, is attempting to answer that question.
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What are HIV and AIDs? AIDS stands for acquired immunodeficiency syndrome. This is a term which covers the range of infections and illnesses which can result from a weakened immune system caused by HIV. It is important to remember that when you are first infected with HIV you do not have AIDS.