Proponents of the hygiene hypothesis say it explains, in large part, why allergy and asthma rates have skyrocketed in industrialized countries as exposure to infectious agents and germs has declined.
卫生假说的支持者称，这在很大程度上解释了为什么在工业化国家，人们暴露于感染性介质和细菌的机会变少了，而过敏和哮喘的比例却猛涨。
Proponents of the hygiene hypothesis say it explains, in large part, why allergy and asthma rates have skyrocketed in industrialized countries as exposure to infectious agents and germs has declined.
卫生假说的支持者称，这在很大程度上解释了为什么在工业化国家，人们暴露于感染性介质和细菌的机会变少了，而过敏和哮喘的比例却猛涨。
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