The book of Microbiology and Parasitology is specially designed for Nurses to study about parasites, pathogenic organisms which produce disease in human beings in direct or indirect way. It contain detailed descriptions have been deliberately omitted. I am sure the book will be of immense help to students of nursing and allied health care personnel. In this small book I have tried to depict the voluminous texts of microbiology and parasitology in a crisp and concise manner.