Roitt’s Essential Immunology clearly explains the key principles needed by medical and health sciences students from the basis of immunity to clinical applications A brand new introduction sets the scene to section 1 Fundamentals of Immunology introducing the microbial world and the strategies the body employs to defend itself Each chapter then guides the reader through a different part of the immune system and explains the role of each cell or molecule individually and then as a whole Section 2 Applied Immunology discusses what happens when things go wrong and the role the immune system plays alongside the damaging effects of a disease including cancer immunodeficiency allergies and transplantation and the beneficial effects of vaccines