PPT-Vaccines Artificially Acquired Active Immunity

Mike Clark MD Vaccines organism dead or attenuated Spare us the symptoms of the primary response Provide antigenic determinants that are immunogenic and reactive Older vaccines target only one type of helper T cell T. . Ch.16. What is Immunity?. Immunity is resistance to infection after a foreign antigen has penetrated the first line of defense,. Immunity is achieved naturally, by having the disease or the artificial immunization. . International . welcomes submissions that are original and technically so as to serve both the developing world and developed countries in the best possible way.. OMICS Journals are poised in excellence by publishing high quality research. . Lymphatic System. & . Immunity. Lymphatic System Components. supplement to the circulatory system.. Contains:. . Lymph. . Lymph nodes. . Lymph vessels. . in the . . intestinal tract. . Tonsils. HCS 2100. SLO: 1.0 – 1.4. Immunity is defined as:. The final line of defense against disease. An individual’s power to resist or overcome the effects of a particular disease agent or its harmful products. Immunizations. Two artificial methods to make an individual immune to a disease. Active immunization-. administration of a vaccine response. Passive immunization-. Individual acquires immunity through the transfer of antibodies formed by an immune individual or animal. Learning objectives. By the end of this session student will be able to. . Define innate immunity, acquired immunity. . To understand cells involved in . innate . and acquired . immunity. IMMUNITY. Immune Responses. Applications of the Immune Response. A. Vaccination – the practice of deliberately stimulating the immune system in order to protect individuals against a disease. 1. Edward Jenner developed the first official smallpox . The term Immunity has traditionally referred to the resistance exhibited by the host towards injury caused by microorganism and their product.. However, protection against infectious disease is only one of many consequences of immune response, which in its entirety is concerned with the reaction of the body against any foreign antigen.. of certain substances in . the blood and lymph stream. . These . substances are known as antibodies. . This immunity is inborn. . . Antigens. , the foreign substances that attack the body, stimulate the production of antibodies. . 1 1 Introduction Immunity is the ability of the human body to protect itself from infectious disease. The defence mechanisms of the body are complex and include innate (non-specific, non-adaptive) mec The resistance that an individual acquires during life by recognising and selectively eliminating specific foreign molecules is known as acquired immunity.. This is displays four characteristic features:. Immunization against infectious diseases is on of the greatest successes of modern medicine last 200 years of. Edward Jenner,. vaccination has controlled nine major diseases- smallpox, diphtheria, pertussis, tetanus, poliomyelitis, mumps, measles, rubella and yellow fever.. A. Anatomical barriers to infections. 1.Mechanical Factors. Skin. : physical barrier and impermeable to most infectious agents. The desquamation of skin epithelium also helps remove bacteria and other infectious agents that have adhered to the epithelial surfaces. . Features of adaptive immunity:. Adaptive immunity is characterized by the following:. 1. Antigenic specificity: (. highly specific).. 2. Diversity : . ( each antigen there is specific T-cell and B-cell for it)..