title: The 'hygiene hypothesis: how clean should we be?
authors.affiliation: Columbia University School of Nursing, New York City 10011, USA. ell23@columbia.edu
authors.forename: Elaine
authors.initials: E
authors.lastname: Larson
mesh_terms: D000900:Anti-Bacterial Agents / Q000009:adverse effects; D001249:Asthma / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control; D003140:Communicable Disease Control / Q000379:methods; D003141:Communicable Diseases / Q000453:epidemiology*; D019049:Developed Countries; D019317:Evidence-Based Medicine; D015438:Health Behavior; D006801:Humans; D006920:Hygiene; D006967:Hypersensitivity / Q000453:epidemiology* / Q000209:etiology* / Q000517:prevention & control; D017053:Infection Control; D007255:Information Services; D020407:Internet; D024802:Nurse's Role; D012307:Risk Factors
chemical_list: D000900:Anti-Bacterial Agents