Now, fever is another type of innate Immunity response because what fever basically does is it increases the temperature of our body and that can destroy the bacterial cells because cells cannot actually survive in that particular temperature environment. Now, let's move on to acquired immunity. So we have two divisions of acquired immunity, which takes usually several days to actually kick in. We have cell mediated immunity, also known as T cell immunity. And we also have antibody mediated immunity, also known as B cell immunity or humoral immunity. So the major difference between these two types of divisions of the quiet immunity is one uses a type of cell known as a T lymphocyte or a T cell.