We The People

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). This condition progressively reduces the effectiveness of the immune system and leaves individuals susceptible to opportunistic infectionsand tumors. HIV is transmittedthrough 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. This transmission can involve anal, vaginalor oralsex, blood transfusion, contaminated hypodermic needles, exchange between mother and baby during pregnancy, childbirth, breastfeedingor other exposure to one of the above bodily fluids.

AIDS is now a pandemic. As of 2009, AVERT estimated that there are 33.3 million people worldwide living with HIV/AIDS, with 2.6 million new HIVinfections per year and 1.8 million annual deaths due to AIDS.^[7] In 2007, UNAIDS estimated: 33.2 million people worldwide had AIDS that year; AIDS killed 2.1 million people in the course of that year, including 330,000 children, and 76% of those deaths occurred in sub-Saharan Africa. According to UNAIDS 2009 report, worldwide some 60 million people have been infected, with some 25 million deaths, and 14 million orphaned children in southern Africa alone since the epidemic began.

Genetic research indicates that HIV originated in west-central Africa during the late nineteenth or early twentieth century. AIDS was first recognized by the U.S. Centers for Disease Control and Preventionin 1981 and its cause, HIV, identified in the early 1980s.

Although treatments for AIDS and HIV can slow the course of the disease, there is no known cure or vaccine. Antiretroviral treatment reduces both the mortalityand the morbidity of HIV infection, but these drugs are expensive and routine access to antiretroviral medicationis not available in all countries. Due to the difficulty in treating HIV infection, preventing infection is a key aim in controlling the AIDS pandemic, with health organizations promoting safe sexand needle-exchange programmesin attempts to slow the spread of the virus.

Various conspiracy theories and other such hypotheses have arisen to speculate about the origins of HIVand AIDS. These alternative ideas range from suggestions that AIDS was the inadvertent result of experiments in the development of vaccines, to claims that human immunodeficiency virus was developed by scientists working for the U.S. government. While a few reputable mainstream scientists once investigated some of these theories as reasonable hypotheses, this is no longer the case, as continuing research has invalidated the alternative ideas. The current scientific consensus is that AIDS originated in Africa in the mid 1930s from the closely related Simian Immunodeficiency Virus.