Human Immunodeficiency Virus Infection And Acquired Immune...

Pathogenic Agent Identified Human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) Virus after the infection of the human immunodeficiency virus (HIV), the immune system is damaged so the body become targets of many opportunistic diseases, which called syndrome, rather than just a type of disease. [1] History of Pathogenic Agent The clinical of AIDS was first observed by the US Centers for Disease Control and Prevention in 1981. [2] The region most recent outbreak is In 2005, Sub-Saharan Africa. An estimated 22.9 million of HIV cases and 1.2 million of all deaths occurred in this region. [3] Figure 1-The estimated number of AIDS patients countries Stages and Symptoms of the Disease: There is three†¦show more content†¦Some people stay in this state, while another part of the patient will develop severe AIDS. [4] Anatomy of the Pathogen: The size of an HIV virus particle is about 0.1 micrometre, it has a circular shape Figure2-structure of HIV. [5] The viral envelope, the outer coating of the virus, comprising two layers of lipids. HIV matrix proteins, is Between the envelope and core. Viral core contains the viral envelope protein p24 of HIV RNA surrounded by two single-stranded, for HIV replication enzymes. [5] Figure 3-Scanning electron micrograph of HIV-1 Physiology of the Pathogen: The virus spread from person to person, but only by a few means to spread. The most common are: the exchange of body fluids during sexual intercourse and sharing used needles. [6] Once the HIV virus enters a new host, aims to infect target cells and hijacking. The most widely recognized of these target cells are the T cells, which are most relevant of the immune system. When HIV-infected T cells, it will not kill it. On the contrary, it is parasitic in the cells, using it to produce more HIV. [6] Both HIV-1 and HIV-2 is considered to be derived from the West, Central Africa