There are two types of immunity, innate andacquired. Innate immunity is present from before birth, consisting of blood based components from the mother, physical barriers such as the skin and chemical barriers within the body.Acquired immunity, on the other hand, results from encountering a new substance that is recognized as foreign. This induces an immune response which is specific to that substance, be it a bacteria, virus, fungi, parasite or material. There is also the development of a rapid, and long-lasting immune response after the initial exposure to a pathogen, or initial development of cancerous tissue.Acquired immunity produces antibodies, stimulates the cells which destroy the organisms and neutralize their toxic products. If this becomes too active, however, the result may be undesirable, such as allergic reactions. On the other hand, when the immune response is deficient, we become susceptible to repeated infections. Another activity is the removal of damaged or dying cells and the elimination of any cancer cells that arise within the body. Unfortunately this may result in an immune response against the body's own tissues, producing autoimmune disease.Acquired immunity involves white blood cells which are constantly circulating in the blood stream. There are a variety of these cells but of especial are the lymphocytes. There are two groups, B and T lymphocytes. B lymphocytes (B-cells) manufacture antibodies, which are produced in bone marrow and distributed to tissue around the body such as the lymph nodes. When B-cells come into contact with some foreign material, or antigen, they transform into cells which produce vast amounts of the specific antibody. Other B-cells transform into memory cells which circulate throughout the body, preparing it for any future encounter with this antigen.T lymphocytes (T-cells) originate in the thymus and are active against pathogens, cancerous or wounded cells and transplanted tissue. Their activity requires some direct physical contact with antigens, called cell-mediated immunity. A range of T-cells have been identified including 'Killer T-cells' that attack antigens directly; 'Helper T-cells' (TH or T4) that enable the other T and B cells to perform their functions; and 'Suppressor T-cells' (TS or T8) which monitor and adjust the level of antibodies and counteract the action of Helper T-cells.For further information and consultation on Holistic Lifecare research and services, especially on Blood Infections, Infertility, Sexually Transmitted Diseases, Chronic Debilitating Conditions as well as mental and social problems, please call on: 0803-330-3897 or visit: Mosebolatan Holistic Lifecare Centres in Ibadan, Lagos or Abuja. Website: www.holisticlifecare.com. Distance is no barrier, we can send remedies by courier if need be. We also have facilities for accommodation, admission and hospitalisation in a serene and homely environment.[To be continued next week]
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