In this article we will discuss about the historical perspectives and types of immunity. Historical Perspectives of Immunity: The phenomenon of immunity (Latin immunis means 'exempt') can be traced back to Thucydides, the great historian of Peloponnesian War. In 430 BC he wrote that a plague spread in Athens, only those could nurse the sick who recovered from the plague [...]
Many clinical tests are being done on the basis of specificity of antibodies for antigen and their ability to recognize epitopes, which is a very small portion or portions of antigen. Antibody based assays are epitope-detecting devices and most of them are based upon the quantitative precipitin curve (Fig. 5.7). A.1 Precipitation reactions in fluids: A quantitative precipitation reaction can [...]
In this article we will discuss about the attributes of acquired immunity. Acquired immunity or Adaptive immune response reflects the presence of a functional immune system that is capable of specifically recognizing and selectively eliminating foreign microorganisms and molecules. Unlike innate immune responses, adaptive immune responses are not the same in all the members of a species, but are specific [...]