The textbook consists of three units: Microbiology, Virology and Immunology, each of which includes the main topics of the curriculum in these disciplines. Each topic is presented with a chapter, including the main questions of the topic, answers to them, as well as self-check and clinical cases that help students to understand studied material and check up the knowledge gained. The material is illustrated with pictures, diagrams and tables.The book is written in accordance with the program of teaching disciplines “Microbiology”, “Virology” and “Immunology” approved offi cially. Textbook “Medical Microbiology,Virology and Immunology. Lecture notes” is destined for students who study the disciplines “Microbiology, Virology” and “Immunology” in English in the medical universities of the Russian Federation.