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Graduate School of Veterinary Medicine, Hokkaido University
Graduate School of Veterinary Medicine, Hokkaido University

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Human Health and the Microbiota - McGill Science Undergraduate
Human Health and the Microbiota - McGill Science Undergraduate

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Hygiene hypothesis

In medicine, the hygiene hypothesis is a hypothesis that states that a lack of early childhood exposure to infectious agents, symbiotic microorganisms (e.g. gut flora or probiotics), and parasites increases susceptibility to allergic diseases by suppressing the natural development of the immune system. In particular, the lack of exposure is thought to lead to defects in the establishment of immune tolerance.The hygiene hypothesis has also been called the ""biome depletion theory"" and the ""lost friends theory"".
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