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Whole Organism Vaccines (واکسن های ارگانیسم کامل)
اسلاید 1: Whole organism vaccines - Attenuated vaccines - Inactivated vaccines
اسلاید 2: What is immunity?In biology, immunity is the capability of multicellular organisms to resist harmful microorganisms. Immunity can be defined as a complex biological system endowed with the capacity to recognize and tolerate whatever belongs to the self, and to recognize and reject what is foreign (non-self).The duration of immunity varies with different diseases and different vaccines. Lifelong immunity is not always provided by either natural infection (getting the disease) or vaccination.
اسلاید 4: Types of ImmunizationPassive ImmunizationPassive immunity is provided when a person is given antibodies to a disease rather than producing them through his or her own immune system. A newborn baby acquires passive immunity from its mother through the placenta.Active Immunization Active immunity is defined as immunity to a pathogen that occurs following exposure to said pathogen. When the body is exposed to a novel disease agent, B cells, a type of white blood cell, create antibodies that assist in destroying or neutralizing the disease agent.
اسلاید 5: The difference between active and passive immunityA prominent difference between active and passive immunity is that active immunity is developed due to the production of antibodies in ones own body, while passive immunity is developed by antibodies that are produced outside and then introduced into the body.
اسلاید 6: What is a vaccine simple definition?A vaccine is a biological substance designed to protect humans from infections caused by bacteria and viruses.A product that stimulates a persons immune system to produce immunity to a specific disease, protecting the person from that disease. Vaccines are also called immunizations because they take advantage of our natural immune systems ability to prevent infectious illness.Vaccines are usually administered through needle injections, but can also be administered by mouth or sprayed into the nose.