AIDS

Acquired immune deficiency syndrome or acquired immunodeficiency syndrome (AIDS) is a disease of the human immune system caused by the human immunodeficiency virus (HIV).[1][2][3] The illness interferes with the immune system, making people with AIDS much more likely to get infections, including opportunistic infections and tumors that do not affect people with working immune systems. This susceptibility gets worse as the disease continues. HIV is transmitted in many ways, such as: vaginal, oral or anal sex; blood transfusion; contaminated hypodermic needles; and exchange between mother and baby during pregnancy, childbirth, and breastfeeding. It can be transmitted by any contact of a mucous membrane or the bloodstream with a bodily fluid that has the virus in it, such as the blood, semen, vaginal fluid, preseminal fluid, or breast milk from an infected person.[4][5] The virus and disease are often referred to together as HIV/AIDS. The disease is a major health problem in many parts of the world, and is considered a pandemic, a disease outbreak that is not only present over a large area but is actively spreading.[6] In 2009, the World Health Organization (WHO) estimated that there are 33.4millionpeople worldwide living with HIV/AIDS, with 2.7millionnew HIV infections per year and 2.0millionannual deaths due to AIDS.[7] In 2007, UNAIDS estimated: 33.2millionpeople worldwide were HIV positive; AIDS killed 2.1millionpeople in the course of that year, including 330,000children, and 76% of those deaths occurred in sub-Saharan Africa.[8] According to UNAIDS 2009 report, worldwide some 60millionpeople have been infected since the start of the pandemic, with some 25milliondeaths, and 14millionorphaned children in southern Africa alone.[9] Genetic research indicates that HIV originated in west-central Africa during the late nineteenth or early twentieth century.[10][11] AIDS was first recognized by the U.S. Centers for Disease Control and Prevention in 1981 and its cause, HIV, identified in the early 1980s.[12] Although treatments for HIV/AIDS can slow the course of the disease, there is no known cure or HIV vaccine. Antiretroviral treatment reduces both the deaths and new infections from HIV/AIDS, but these drugs are expensive and the medications are not available in all countries.[13] Due to the difficulty in treating HIV infection, preventing infection is a key aim in controlling the AIDS pandemic, with health organizations promoting safe sex and needle-exchange programmes in attempts to slow the spread of the virus.

Posted By manoj On March 15





Post your Reply

Replies To This Forum

commented By vikas jee on 3/15/2012 5:08:28 PM

Acquired immune deficiency syndrome or acquired immunodeficiency syndrome (AIDS) is a disease of the human immune system caused by the human immunodeficiency virus (HIV).[1][2][3] The illness interferes with the immune system, making people with AIDS much more likely to get infections, including opportunistic infections and tumors that do not affect people with working immune systems. This susceptibility gets worse as the disease continues. HIV is transmitted in many ways, such as: vaginal, oral or anal sex; blood transfusion; contaminated hypodermic needles; and exchange between mother and baby during pregnancy, childbirth, and breastfeeding. It can be transmitted by any contact of a mucous membrane or the bloodstream with a bodily fluid that has the virus in it, such as the blood, semen, vaginal fluid, preseminal fluid, or breast milk from an infected person.[4][5] The virus and disease are often referred to together as HIV/AIDS

commented By manoj on 3/15/2012 5:07:36 PM

AIDS was first recognized by the U.S. Centers for Disease Control and Prevention in 1981 and its cause, HIV, identified in the early 1980s.[12] Although treatments for HIV/AIDS can slow the course of the disease, there is no known cure or HIV vaccine. Antiretroviral treatment reduces both the deaths and new infections from HIV/AIDS, but these drugs are expensive and the medications are not available in all countries.[13] Due to the difficulty in treating HIV infection, preventing infection is a key aim in controlling the AIDS pandemic, with health organizations promoting safe sex and needle-exchange programmes in attempts to slow the spread of the virus.


Mobile Phones and Accessories