HUMAN IMMUNODEFICIENCY VIRUS

Human Immunodeficiency Virus

Human Immunodeficiency Virus

HIV infection - human immunodeficiency virus (causative agent of AIDS)

The cause of the disease known as AIDS (HIV) infection is defeated organizmavirusom human immunodeficiency. Suffer in the first place, immune system cells, which lose their primary function - protecting the body against diseases.

In 2002, HIV infection was detected for the first time, the virus has long been studied, and it is now known more than about any other virus that attacks the human body. Immunodeficiency virus belongs to the lentivirus (slow acting), the group - retrovirusy. Izobrazhenie virus similar to the anti-mine, on the surface of which are "Glycoprotein mushrooms" - an instrument with which the virus enters the T-lymphocytes (cells in human blood). At the core of T-lymphocyte contains genetic information 100 000 times greater than in the virus, but, nevertheless, the cell is unable to resist the virus and begins to slowly crumble from its damaging effects.

Almost all the genetic information known in the nature of the cells of viruses is encoded in the form of DNA. In human immunodeficiency virus is encoded in RNA. HIV is able to use transcriptase enzyme to translate their RNA into DNA, so the cell, which penetrates the virus takes the foreign DNA. This process takes about 12 hours after infection. After this process is irreversible, because the DNA of the virus begins to manage the human immune system, and by the time when HIV infection is transformed into AIDS, a large number of cells contains the genetic material of the virus. Despite the detailed scrutiny of HIV, many moments of HIV infection is not entirely clear - namely, what is the mechanism of the destructive effects of the virus on the immune system, and why many people infected with HIV may be a long time to stay completely healthy.

Does AIDS really human immunodeficiency virus? The medicine has not yet come to a view, but more than 5000 scientists around the world have signed the Durban Declaration, reaffirming the fact that HIV is the cause of razvitiya SPIDa.

To ensure absolute objectivity of the document in the signing of the Declaration did not attend those working in pharmaceutical companies. The Declaration contains evidence that AIDS is a result of the impact of HIV on the human body and is the final stage ofHIV infection. Most scientists believe this fact is indisputable. The Durban Declaration stated, inter alia, that the AIDS virus called HIV-1 and HIV-2, and this is evidenced by the many facts that meet the scientific standards. These facts include the same criteria as in the definition of diseases such as polio, measles or chickenpox.

In the absence of treatment in 5 - 10 years in people with HIV infection develops AIDS. HIV infection is diagnosed on the basis of appearance in the blood of antibodies to the virus or gene chains. The reliability of these tests is not in doubt.

Transfusion of blood contaminated with HIV infection in humans, which blood was transfused from a donor, may develop AIDS, while at the same time, the transfusion of clean, uncontaminated blood, AIDS does not develop.

Children, who have developed AIDS, were born from HIV-infected ...