Sanitizing the hygiene hypothesis: Health lessons from human co-evolution with microorganisms Report from a Workshop led by Kathleen Barnes, Department of Medicine, Johns Hopkins University and Erika von Mutius, Professor of Pediatrics, University Children’s...
In 2005 Sarkis Mazmanian and colleagues showed that a single polysaccharide from an intestinal commensal, Bacteroides fragilis, could largely correct the subnormal and functionally distorted development of the immune system that occurs in germ-free mice (Mazmanian et...