Fig. 2From: Viral infections and wheezing–asthma inception in childhood: is there a role for immunomodulation by oral bacterial lysates?After oral administration of bacterial lysates (OBL), bacterial antigens are taken up by microfold (M) cells and then processed by dendritic cells (DC) in the gut-associated lymphoid tissue. DC stimulate the local immune response in the Peyer’s patches with subsequent migration of immune effector cells to the bronchial-associated lymphoid tissue of the lungs. From ref. #[61], modified with permissionBack to article page