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Immunology (BS)


Admission requirements

Basic knowledge on cellular processes and interactions.
Course is only open to students that follow the entire exchange module package.


This module focuses on the mechanisms of our immune system which ward off and eliminate microorganisms. A well-functioning immune system can even recognize and eliminate tumor cells. We will go into the basic principles of the development and organization of the immune system, the cellular and humoral interactions involved in immune responses, and the pathogenic effect of defects in the immune system and of autoimmune reactions. Current knowledge of cellular interactions has enabled manipulation of the immune response; allergy patients can now be cured through desensitization therapy, and intervention strategies for the suppression of autoimmune reactivity and immune reaction to transplants are being applied. In addition to the well-known vaccinations against diseases, such as tetanus, diphtheria and whooping-cough, human immunity can be modulated by the infusion of hematopoietic cells that recognize microorganisms. Finally, strategies to boost or stimulate anti-tumor responses will be discussed.

Course objectives

The student will be able to:

  • describe the organization of the immune system and the development of immune functions during life in healthy individuals.

  • explain the intercellular interactions and soluble factors that play a role in the mechanisms of immune reactivity against the various microorganisms.

  • discuss why and how deficiencies, self-reactivity or hyper-reactivity of the immune system can cause distinct disease entities.

  • discuss and critically review the strategies that can be applied to treat patients suffering from diseases with an immunological etiology.

  • discuss and critically review how the immune system can be manipulated to fight infectious diseases and malignancies, and to prevent autoimmune manifestations.

  • explain why transplantation of hematopoietic stem cells and solid organs is complicated by reactions of the immune system and how these reactions can be modulated.

  • critically read, present and discuss selected scientific papers in the field of immunology.

  • develop writing and communication skills in English, in particular reporting on debate, building arguments, establishing and substantiating one’s own opinion.

  • learn how to separate main- and side issues (by self-study assignments and questions) during the various workgroups.

  • learn how to distinguish between claims made by the author, one’s own opinions and those of the tutor and other students.


All course and group schedules are published on MyTimeTable.

The exam dates have been determined by the Education Board and are published in MyTimeTable.
It will be announced in MyTimeTable and/or Brightspace when and how the post-exam feedback will be organized.

Mode of instruction

Lectures, work groups, practicals, seminars, and presentations.

Assessment method

Written exam, for those following the practicum “Phagocytosis and Complement” a written report (pass/no pass), pass/no pass for practicum “Anatomy of the Lymphoid system” and pass/no pass practicum Flow Cytometry with R assignment.

Reading list

You can find the complete reading list for Biomedical Sciences here.


Registration must be done via MyStudyMap. Registration in MyStudyMap gives you automatic access to the course in Brightspace. For more information, please visit the Leiden University website for students.



Information for exchange students
This module is part of an English taught third semester of the bachelor’s programme in Biomedical Sciences at Leiden University Medical Center. Combining biomedical modules with modules from other programmes in Leiden is difficult or impossible due to different scheduling schemes. Exchange students with sufficient relevant background knowledge in biology/biomedicine are therefore encouraged and advised to choose the entire module package indicated (by an *) below.

Immunology (BW), 9 EC*
Infectious Agents And Immunity, 6 EC*
Introduction to the Neurosciences 6, EC*
Design and analysis of Biomedical Studies, 6 EC*

Line education
Communication in Science for Exchange students, 2 EC*

Additional options:
Biomedical Academic Scientific Training for Exchange Students, 2 EC
Applied Electrophysiology for Exchange students, 2 EC

A minimum number of applicants is required for continuation of the optional components.