DEFINITION HIV / AIDS
AIDS (Acquired Immunodeficiency Syndrome) can be defined as the collection of symptoms or a disease caused by decreasing the body's immune consequences of infection by HIV (Human Immunodeficiency Virus), which include family Retroviridae and subfamily Lentiviridae. AIDS is the final stage of HIV infection. (Djoerban, 2006)
Until now the new serotipe HIV-2 is known that HIV-1 and HIV-2. HIV-2 is also called lymphadenopathy-associated virus type 2 (LAV-2) that until now only found in the case of AIDS or healthy people or healthy people in Africa. HIV-1, as the cause of AIDS, formerly known as human T-cell lymphotrophic virus type III (HTLV-III), lymphadenopathy-associated virus (LAV) and AIDS-associated virus. Morphologies the HIV-1 and rounded shape of the nucleus (core) and cover (Envelope). (Soedarmo, 2002)
The core of the virus consists of a protein cover currently consists of a glikoprotein. Protein from the nucleus consists of a genome RNA and the enzyme can change the RNA into DNA at the time of virus replication, the enzyme called reverse transcriptase (RT). Genome virus which basically consists of genes, responsible for providing the code for both the formation of the core protein, and enzyme RT glikoprotein from the shroud. In fact there are other genes that function set synthesis, the ability of infection (infecsisitas), replication, and other functions of the virus. Part Envelope consisting of glikoprotein, apparently had an important role in the occurrence of infection because of the large affinities have receptors against specific cell hospes. (Soedarmo, 2002)
HIV / AIDS occurs through body fluids containing the HIV virus through sexual relations, whether gay or
heterosexual, syringe on drug users, transfuse blood components, and from HIV-infected mothers to infants born.
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