Aids
The saddest incurable disease facing the world today is cancer. But the scariest is the HIV/AIDS virus. It is scary because it is a disease that humans can protect themselves from and for the most part choose not to. HIV stands for human immunodeficiency virus and it attacks the T cells in our bodies. HIV interferes with our body's ability to effectively fight viruses that cause diseases. HIV virus leads to AIDS acquired immune deficiency syndrome, which is a chronic and life threatening condition. Nationally HIV/AIDS became known in the early 1980's but studies have shown that HIV/AIDS has been around since the 1950's. It is said that AIDS originated in Africa. For the most part it is a disease that originated from monkeys. There are many stories of how this virus came about. One story rumored is that a monkey in Africa, infected with the HIV virus, stepped on a rock and slit the bottom of his foot leaving infected blood on the rock. Then a man walking the same path stepped on the same rock and the original blood mixed in his wound. No one really knows how it all started; the best explanation the book gives is human consumption of animal meat. Nonetheless HIV/AIDS is a serious disease that is killing America little
No one will die from AIDS, they will die from the complications of the opportunistic infection. There are also some signs of impairment on the nervous system, which include loss of memory, inability to think clearly and depression. Some people may present some symptoms such as a mild fever, sweating, enlarged tonsils, and weight loss. T cells display a molecule called CD4 on their surface. At this stage clinical test will come back negative because these test are looking for antibodies not for the HIV virus itself. So far there is no cure for AIDS but there is a drug therapy currently available. This is why the acute phase is where the infected person is considered to be highly infectious. The best protection during sexual contact is not to have sex, but if sex is happening the most effective protection is condoms. HIV infection attacks the immune system in three phases. The infected person has no symptoms but their CD4 count ranges from 500-800. As you will see when HIV attacks the CD4 T cells (T helpers) they are destroyed and then the B cells will not function in producing antibodies. But even though the body is working hard producing CD4 cells the immune system is still strong enough to deal with the HIV infection. But these symptoms quickly go away. HIV/AIDS is a preventable disease, which is that everyone, if given the right education, can protect himself or herself. At this stage the body is going through the "kitchen sink model," where CD4 cells are being produced like a faucet to fight off the HIV infection.
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