The below mentioned article provides notes on immune system. Immune Response: Any foreign protein, toxin of parasites, bacteria and viruses, when enter into the body, they interfere with host physiological processes and produce harmful effects. The "Chemical defense" mechanism of host organism that operates against such effects of parasites and others is called immune reaction or immune response. Immunology: The [...]
In this article we will discuss about the steps involved in cellular immune response. Host defenses that are mediated by antigen specific T-cells and various non-specific cells of the immune system is called cell mediated immune responses. Cellular immune responses have an activation phase and an effector phase. These phases occur as follows (Fig. 10.2): 1. A viral protein made [...]
In this article we will discuss about the active and passive immunity of cell-mediated. 1. Active Immunity: On the basis of immunity acquired, active immunity may be natural or artificial. i. Natural active immunity: It results from either a clinical or an in-apparent subclinical infection by a microbe after repeated exposure to small doses of the infecting organism, which passes [...]