This groundbreaking book from the Spanish immunologist Ramón Turró provides an in-depth analysis of the role of defensive fermentations in natural and acquired immunity. Drawing on a wealth of research from the fields of microbiology, biochemistry, and immunology, this book sheds new light on the functioning of the human immune system and offers insights for the medical community. A must-read for anyone interested in the science of immunology. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.