When Paul Erlich postulated the idea of "magic bullet" in the early part of 20th century, he only had the findings of a research, regarding the presence of humoral immunity, performed by Emil von Behring and Kitasato Shibasaburo.. There was no concrete data about the presence of antibodies in those days. According to the idea, "if a compound could be made that selectively targeted a disease-causing organism, then a toxin for that organism could be delivered along with the agent of selectivity". If the point in the technology of monoclonal antibody generation that we have reached from '80s to present is considered, it can be claimed that we have started to go beyond the technology realizing the fighting strategy principally proposed by Paul Erlich at those times. The period starting with the production of fully murine antibodies in the first years exhibited a fast-growing trend with the help of recombinant