HIV (human immunodeficiency virus) is a virus that attacks the body's immune system. If HIV is not treated, it can lead to AIDS (acquired immunodeficiency syndrome). There is currently no effective cure. Once people get HIV, they have it for life. But with proper medical care, HIV can be controlled.
Symptoms. The symptoms of HIV and AIDS vary, depending on the phase of infection.. Primary infection (Acute HIV) Some people infected by HIV develop a flu-like illness within 2 to 4 weeks after the virus enters the body. This illness, known as primary (acute) HIV infection, may last for a few weeks. Possible signs and symptoms include:
What Is HIV? HIV (human immunodeficiency virus) is a virus that attacks cells that help the body fight infection, making a person more vulnerable to other infections and diseases.It is spread by contact with certain bodily fluids of a person with HIV, most commonly during unprotected sex (sex without a condom or HIV medicine to prevent or treat HIV), or through sharing injection drug equipment.
Visna-maedi virus. The human immunodeficiency viruses ( HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), [1] [2] a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. [3]
Human immunodeficiency virus (HIV) is an infection that attacks the body's immune system. Acquired immunodeficiency syndrome (AIDS) is the most advanced stage of the disease. HIV targets the body's white blood cells, weakening the immune system. This makes it easier to get sick with diseases like tuberculosis, infections and some cancers.
The abbreviation "HIV" can refer to the virus or to HIV infection. AIDS stands for acquired immunodeficiency syndrome. AIDS is the most advanced stage of HIV infection. HIV attacks and destroys the infection-fighting CD4 cells ( CD4 T lymphocyte) of the immune system. The loss of CD4 cells makes it difficult for the body to fight off ...
HIV Basics | HIV/AIDS | CDC. Español (Spanish) | Print. HIV stands for human immunodeficiency virus. It weakens a person's immune system by destroying important cells that fight disease and infection. There is currently no effective cure for HIV. But with proper medical care, HIV can be controlled. Some groups of people in the United States ...
Diarrhea that lasts for more than a week. Sores of the mouth, anus, or genitals. Pneumonia. Red, brown, pink, or purplish blotches on or under the skin or inside the mouth, nose, or eyelids. Memory loss, depression, and other neurologic disorders. Each of these symptoms can also be related to other illnesses.
HIV can be diagnosed through blood or saliva testing. Available tests include: Antigen/antibody tests. These tests usually involve drawing blood from a vein. Antigens are substances on the HIV virus itself and are usually detectable — a positive test — in the blood within a few weeks after exposure to HIV.
CDC provides leadership for HIV prevention research and surveillance and the development and testing of effective biomedical interventions to reduce transmission and HIV disease progression in the United States and internationally. It also provides national leadership in the development, implementation, and evaluation of evidence-based HIV prevention programs serving persons affected by, or at ...
AIDS is the disease caused by the damage that HIV does to your immune system. You have AIDS when you get dangerous infections or have a super low number of CD4 cells. AIDS is the most serious stage of HIV, and it leads to death over time. Without treatment, it usually takes about 10 years for someone with HIV to develop AIDS.
HIV is a virus that damages the immune system. Untreated HIV affects and kills CD4 cells, which are a type of immune cell called T cell. Over time, as HIV kills more CD4 cells, the body is more ...
HIV medicines prevent HIV from multiplying (making copies of itself), which reduces the amount of HIV in the body (called the viral load). Having less HIV in the body gives the immune system a chance to recover and produce more CD4 cells. Even though there is still some HIV in the body, the immune system is strong enough to fight off infections ...
An HIV-positive person transmitting HIV to their baby during pregnancy, birth, or breastfeeding. However, the use of HIV medicines and other strategies have helped lower the risk of perinatal transmission of HIV to less than 1% in the United States. Learn more. Being exposed to HIV through a needlestick or sharps injury. This is a risk mainly ...
Human immunodeficiency virus (HIV) is the virus that causes acquired immune deficiency syndrome (AIDS). HIV weakens your immune system by destroying your T-cells until you are unable to fight off even minor illnesses. You can have HIV without any symptoms. Getting tested and starting treatment early gives you the best chance of living a long life.
HIV viral load measures the amount of virus in the blood. This test is used to monitor the level of viral replication and effectiveness of ART. The treatment goal is to reduce the viral load in the blood to undetectable levels (less than 50 copies/ml), and the persistent presence of detectable viral load (greater than 1000 copies/ml) in people ...
Also, transgender women who have sex with men are among the groups at highest risk for HIV infection. People who inject drugs remain at significant risk for getting HIV as well. Risk behaviors. In the United States, HIV is spread mainly through having anal or vaginal sex or sharing needles or syringes with an HIV-positive partner.
HIV treatment reduces the amount of HIV in the blood (viral load). Taking your HIV medicine as prescribed will help keep your viral load low. HIV treatment can make the viral load very low ( viral suppression ). Viral suppression means having less than 200 copies of HIV per milliliter of blood.
Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual may not notice any symptoms, or may experience a brief period of influenza-like illness. Typically, this is followed by a prolonged incubation period with no ...
HIV (human immunodeficiency virus) is a virus that damages the cells in your immune system and weakens your ability to fight everyday infections and disease. AIDS (acquired immune deficiency syndrome) is the name used to describe a number of potentially life-threatening infections and illnesses that happen when your immune system has been ...
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