醫學一：100題 ( 包括解剖學,胚胎學,組織學,微生物免疫學,寄生蟲學,公共衛生學等科目及其臨床相關知識 )題庫下載題庫

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.