HIV And The Immune System By Lachlan Evans
What is HIV?
HIV otherwise know as human immunodeficiency virus, if this virus is left untreated it can cause the disease of aids (acquired immunodeficiency syndrome).
HIV is one of the many incurable diseases; this means that once you have HIV, you will have it until you die. At this moment there are no safe and effective cure for HIV. The human immune system cannot destroy it due to HIV affecting specific cells of the immune system, called CD4 cells, or T-cells. Overtime if HIV is left untreated, HIV can destroy so many of these cells that the body can’t fight of infections and disease. The helper T-cells once activated with HIV will try to create more viruses instead of doing there intended job …show more content…
HIV is not spread easily; HIV can only be passed on through certain body fluids from a HIV-infected person. The list of body fluids possible to contract HIV is blood, semen (cum), pre seminal fluid (pre-cum), rectal fluids, vaginal fluids and breast milk. The body fluids listed must come into contact with a mucous membrane or a damaged tissue or HIV injected directly into your bloodstream for transmission of HIV to possibly occur. Having sexual intercourse is the biggest risk of contracting HIV; anal sex is the highest risk sexual behaviour. Vaginal sex is the second highest risk of sexual behaviour. Having multiple sex partners can increase the risks of HIV infection through sex. Sharing needles is the third cause of contracting HIV. HIV can be prevented through sexual acts by wearing a condom and protecting yourself before hand. This raises an issue in certain countries it is harder to find condoms because of manufacturing issues and …show more content…
This meaning your body can detect what is you and what you need to survive and your body is able to tell if there is something out of place. Your body is able to tell if an invader (virus, bacteria, parasite or another person’s tissues) had entered your body - you do this without being consciously aware that something had happened. Once your body has discovered an anomaly in your body; it uses a number of defence tactics to destroy it.
The main organs of the immune system are lymph nodes, spleen, bone marrow and lymphocytes. If the human body did not have the organs necessary for the immune system our defence against virus, bacteria and parasite will fail significantly and humans would die a real young age.
HIV disrupts the process of the immune system by directly infecting the helper T-cells. The initial immune response to HIV does get rid of a great deal of HIV, but some of the virus manages to survive and infect the important cells. When the infected helper T-cells are activated, the cells work to create new viruses instead of doing the job that they are supposed to do in the human body’s immune system. In the process of this many of the helper T-cells are destroyed in the HIV replication process.