title: The hygiene hypothesis and atopic disease.
authors.forename: Ramsay L
authors.initials: RL
authors.lastname: Fuleihan
mesh_terms: D000485:Allergens / Q000009:adverse effects; D000818:Animals; D000829:Animals, Domestic; D001249:Asthma / Q000209:etiology / Q000517:prevention & control; D002648:Child; D002656:Child Day Care Centers; D004731:Endotoxins / Q000009:adverse effects; D004781:Environmental Exposure / Q000009:adverse effects; D006801:Humans; D006920:Hygiene; D006967:Hypersensitivity / Q000209:etiology* / Q000517:prevention & control; D035781:Siblings
chemical_list: D000485:Allergens; D004731:Endotoxins