Prague Wenceslas Square AIDS

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Acquired immunodeficiency syndrome (AIDS) Classification and external resources The Red ribbon is a symbol for solidarity with HIV-positive people and those living with AIDS. ICD-10 B24. ICD-9 042 DiseasesDB 5938 MedlinePlus 000594 eMedicine emerg/253 MeSH D000163 List of abbreviations used in this article AIDS: Acquired immune deficiency syndrome HIV: Human immunodeficiency virus CD4+: T helper cells CCR5: Chemokine (C-C motif) receptor 5 CDC: Centers for Disease Control and Prevention WHO: World Health Organization PCP: Pneumocystis pneumonia TB: Tuberculosis MTCT: Mother-to-child transmission HAART: Highly active antiretroviral therapy STI/STD: Sexually transmitted infection/disease Acquired immune deficiency syndrome or acquired immunodeficiency syndrome (AIDS or Aids) is a set of symptoms and infections resulting from the damage to the human immune system caused by the human immunodeficiency virus (HIV).[1] This condition progressively reduces the effectiveness of the immune system and leaves individuals susceptible to opportunistic infections and tumors. HIV is transmitted through direct contact of a mucous membrane or the bloodstream with a bodily fluid containing HIV, such as blood, semen, vaginal fluid, preseminal fluid, and breast milk.[2][3] This transmission can involve anal, vaginal or oral sex, blood transfusion, contaminated hypodermic needles, exchange between mother and baby during pregnancy, childbirth, or breastfeeding, or other exposure to one of the above bodily fluids. AIDS is now a pandemic.[4] In 2007, an estimated 33.2 million people lived with the disease worldwide, and it killed an estimated 2.1 million people, including 330,000 children.[5] Over three-quarters of these deaths occurred in sub-Saharan Africa,[5] retarding economic growth and destroying human capital.[6] Most researchers believe that HIV originated in sub-Saharan Africa during the twentieth century.[7] AIDS was first recognized by the U.S. Centers for Disease Control and Prevention in 1981 and its cause, HIV, identified by American and French scientists in the early 1980s.[8] Although treatments for AIDS and HIV can slow the course of the disease, there is currently no vaccine or cure. Antiretroviral treatment reduces both the mortality and the morbidity of HIV infection, but these drugs are expensive and routine access to antiretroviral medication is not available in all countries.[9] Due to the difficulty in treating HIV infection, preventing infection is a key aim in controlling the AIDS epidemic, with health organizations promoting safe sex and needle-exchange programmes in attempts to slow the spread of the virus.

Category: Travel
Uploaded: August 1st, 2008 @ 6:23 pm
Author: koubavit

Length: 01:46
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