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 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.
HIV is a type of virus called a retrovirus. Like all viruses, it must invade the cells of other organisms to survive and reproduce. HIV multiplies in the human immune system's CD4+ T cells and kills vast numbers of the cells it infects. The result is disease symptoms.
Nice To Know:
There are two forms of HIV:
* HIV-1 is the more common and more potent form. This form of HIV has spread throughout the world.
* HIV-2, which is less potent that HIV-1, is found predominantly in West Africa. It is also more closely related to two HIV-like viruses found in monkeys.
There also are different strains of the virus, which makes it difficult to find one single treatment.
About The Immune System
Our bodies use a natural defense system to protect us from bacteria, fungi, viruses, and other microscopic invaders. This system includes general, nonspecific defenses as well as weapons custom-designed against specific health threats: # Innate, or nonspecific, immunity is the first line of defense. Our skin, tears, mucus, and saliva, as well as the swelling that occurs after an infection or injury, contain types of immune cells and chemicals that attack disease-causing agents attempting to invade the body.
# Adaptive, or specific, immunity uses specialized cells and proteins called antibodies to attack invaders that get past the first line of defense. These weapons target specific proteins called antigens that stimulates the production of antibodies, found on the surface of the invading organism. The immune system can quickly rally these custom-tailored defenses if this particular invader attacks again.
This transmission can involve anal, vaginal or oral sex, blood transfusion, contaminated hypodermic needles, exchange between mother and baby during pregnancy, childbirth, breastfeeding or other exposure to one of the above bodily fluids.
AIDS is now a pandemic. In 2007, it was estimated that 33.2 million people lived with the disease worldwide, and that AIDS killed an estimated 2.1 million people, including 330,000 children. Over three-quarters of these deaths occurred in sub-Saharan Africa, retarding economic growth and destroying human capital.
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 Prevention in 1981 and its cause, HIV, identified in the early 1980s. Two-thirds of all people infected with HIV live in sub-Saharan Africa, although this region contains little more than 10% of the world's population.1 AIDS has caused immense human suffering in the continent. The most obvious effect of this crisis has been illness and death, but the impact of the epidemic has certainly not been confined to the health sector; households, schools, workplaces and economies have also been badly affected.
During 2008 alone, an estimated 1.4 million adults and children died as a result of AIDS in sub-Saharan Africa.2 Since the beginning of the epidemic more than 15 million Africans have died from AIDS.3
Although access to antiretroviral treatment is starting to lessen the toll of AIDS, fewer than half of Africans who need treatment are receiving it.4 The impact of AIDS will remain severe for many years to come.
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. 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. Il n'existe aucune cure pour le sida. Although antiretroviral treatment can suppress HIV – the virus that causes AIDS – and can delay illness for many years, it cannot clear the virus completely. Bien que les traitements antirétroviraux peuvent supprimer le VIH - le virus qui cause le sida - et peut retarder la maladie pendant de nombreuses années, elle ne peut éliminer le virus complètement. There is no confirmed case of a person getting rid of HIV infection. Il n'ya aucun cas confirmé d'une personne se débarrasser de l'infection à VIH. Sadly, this doesn't stop countless quacks and con artists touting unproven, often dangerous “AIDS cures” to desperate people. Malheureusement, cela ne les empêche pas d'innombrables charlatans et escrocs vantant non prouvées, guérit souvent dangereuses "SIDA" à des gens désespérés.
It is easy to see why an HIV positive person might want to believe in an AIDS cure. Il est facile de voir pourquoi une personne séropositive peut-être envie de croire à une cure pour le sida. Access to antiretroviral treatment is scarce in much of the world. L'accès au traitement antirétroviral est rare dans une grande partie du monde. When someone has a life-threatening illness they may clutch at anything to stay alive. Quand quelqu'un a une maladie potentiellement mortelle, ils mai embrayage à tout pour rester en vie. And even when antiretroviral treatment is available, it is far from an easy solution. Et même lorsque le traitement antirétroviral est disponible, elle est loin d'être une solution facile. Drugs must be taken every day for the rest of a person's life, often causing unpleasant side effects . Les médicaments doivent être pris chaque jour pour le reste de la vie d'une personne, ce qui provoque souvent des effets secondaires désagréables. A one-off cure to eradicate the virus once and for all is much more appealing. Un one-off remède pour éradiquer le virus une fois pour toutes est beaucoup plus attrayante.
Distrust of Western medicine is not uncommon, especially in developing countries. Méfiance envers la médecine occidentale n'est pas rare, en particulier dans les pays en développement. The Internet abounds with rumours of the pharmaceutical industry or the US government suppressing AIDS cures to protect the market for patented drugs. L'Internet regorge de rumeurs de l'industrie pharmaceutique ou le gouvernement américain supprimant cures sida afin de protéger le marché des médicaments brevetés. Many people would prefer a remedy that is “natural” or “traditional”. Beaucoup de gens préfèrent un remède qui est «naturel» ou «traditionnel».