The discipline of biology which deals with the interaction of the parasite with their hosts is called Parasitology. Medical parasitology has it’s consonance with the pathogenic parasites affecting humans, clinical pathology and the reaction of the human’s immune system to counter these pathogens. It also deals with the distinctive processes of the infection and diagnosis, treatment, prevention & control. Moreover medical parasitology additionally contains of drug development, epidemiological studies and zoonosis. It is an interdisciplinary field, inveigled by Biochemistry, Immunology, Microbiology, and other applied existence sciences. Parasites inhabit the host of a remarkably excessive immuno-powerful immune system. Vector-borne infections are transferred through chunk of an infected arthropod, as an instance mosquitoes, ticks, bugs, sandflies and blackflies. Several parasitic worms developed resistance against other infectious retailers despite the fact that the mechanisms of resistance in protozoan parasites are not yet mentioned. About 50% of recognized malarial records are because of P. vivax. Recent advancements in modern-day diagnostic gear have ascertained new aspects for big improvements in parasitic detection.