In this article we will discuss about Antigens:- 1. History of Antigen 2. Composition of Antigen 3. Chemical Nature 4. General Properties. History of Antigen: The inhabitants of East Africa have succeeded in vaccination against the bite of poisonous snakes from time immemorial, they could immunise artificially against tick borne relapsing fever and could protect their cattle from contagious pleuropneumonia [...]
In this article we will discuss about Antibodies:- 1. History of Antibodies 2. The Nature of Antibodies 3. Immunoglobulin G or IgG 4. Kinds of Antibodies. History of Antibodies: Von Behring and Kitasato in Berlin in 19th century recognised antibodies in the blood stream of an immunized animal against tetanus and diphtheria. They observed clumping or agglutination of microorganisms and [...]
In this article we will discuss about Immunity:- 1. Definition of Immunity 2. Determinants of Natural Immunity 3. Mechanism. Definition of Immunity: The term immunity (Lat. immunis—freed from homage, save from something) means resistance of the body to the pathogenic microbes, their toxins or to other kinds of foreign substances. In other words, it can be defined as the body's [...]