by Universitätsmedizin Göttingen Fig. 1: Manipulations of the lung microbiota affect CNS autoimmunity. Credit: DOI: 10.1038/s41586-022-04427-4 In its vital function of providing the body with oxygen, the lung is connected to the outside environment by a large exchange surface. This boundary between lung tissue and outside air is inhabited by a specific microbial flora, the...