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Causes And Symptoms Of Aids Pdf

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It is caused by a virus known as HIV human immunodeficiency virus. HIV infection has become a worldwide epidemic.

A Comprehensive Guide to HIV and AIDS

AIDS stands for acquired immunodeficiency syndrome. HIV attacks and destroys the infection-fighting CD4 cells of the immune system. The loss of CD4 cells makes it difficult for the body to fight off infections and certain cancers. These body fluids include:. HIV is not spread through the air or in water or by mosquitoes, ticks, or other blood-sucking insects. To reduce your risk of HIV infection, use condoms correctly every time you have sex, limit your number of sexual partners, and never share injection drug equipment. Also talk to your health care provider about pre-exposure prophylaxis PrEP.

HIV is a virus that targets and alters the immune system, increasing the risk and impact of other infections and diseases. Without treatment, the infection might progress to an advanced stage called AIDS. The life expectancy of a person with HIV is now approaching that of someone who tests negative for the virus, provided that the person takes medications called antiretroviral therapy on an ongoing basis. These are types of T cell — white blood cells that circulate, detecting infections throughout the body and faults and anomalies in other cells. HIV targets and infiltrates CD4 cells, using them to create more copies of the virus.

Acquired immunodeficiency syndrome AIDS is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus HIV. By damaging your immune system, HIV interferes with your body's ability to fight infection and disease. It can also be spread by contact with infected blood or from mother to child during pregnancy, childbirth or breast-feeding. These drugs have reduced AIDS deaths in many developed nations. Some people infected by HIV develop a flu-like illness within two to four 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:.

HIV (Human Immunodeficiency Virus) Infection

You can also download materials to share or watch videos on basic information about HIV. The only way to know for sure whether you have HIV is to get tested. Some people have flu-like symptoms within 2 to 4 weeks after infection called acute HIV infection. These symptoms may last for a few days or several weeks. Possible symptoms include. But some people may not feel sick during acute HIV infection.


HIV stands for “human immunodeficiency virus,” and it attacks immune cells called CD4 cells. These are types of T cell — white blood cells that.


HIV Overview

HIV stands for human immunodeficiency virus. It harms your immune system by destroying a type of white blood cell that helps your body fight infection. This puts you at risk for serious infections and certain cancers. AIDS stands for acquired immunodeficiency syndrome. It is the final stage of infection with HIV.

The immune system is the part of the body that fights infection and disease. For information on HIV drug coverage in B. They recommend more frequent testing for people who belong to populations that have a greater chance of having HIV, are pregnant, experience a change in their health that suggests HIV, or if someone requests a test. HIV human immunodeficiency virus is a virus that attacks the immune system , the body's natural defence system. Without a strong immune system, the body has trouble fighting off disease.

NCBI Bookshelf. Center for Substance Abuse Treatment. Early in the U. Early cases of HIV infection that were sexually transmitted often were related to the use of alcohol and other substances, and the majority of these cases occurred in urban, educated, white MSMs. Currently, injection drug users represent the largest HIV-infected substance-abusing population in the United States.

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AIDS (Acquired Immune Deficiency Syndrome)

It is also defined by numerous opportunistic infections and cancers that occur in the presence of HIV infection. The virus attacks the immune system and leaves the body vulnerable to a variety of life-threatening illnesses and cancers. Common bacteria, yeast, parasites, and viruses that ordinarily do not cause serious disease in people with fully functional immune systems can cause fatal illnesses in people with AIDS. HIV has been found in saliva, tears, nervous system tissue, blood, semen including pre-seminal fluid, or "pre-cum" , vaginal fluid, and breast milk. However, only blood, semen, vaginal secretions, and breast milk have been proven to transmit infection to others. Other transmission methods are rare and include accidental needle injury, artificial insemination with donated semen, and through a donated organ.

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