title: Hygiene hypothesis and protection against asthma in infants: spending time in the countryside encountering natural allergens may boost maternal immunity.
authors.forename: Christos
authors.initials: C
authors.lastname: Zavos
authors.forename: Dimitra
authors.initials: D
authors.lastname: Vini
authors.forename: Jannis
authors.initials: J
authors.lastname: Kountouras
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Zavos
authors.forename: Evanthia
authors.initials: E
authors.lastname: Trivara
mesh_terms: D001249:Asthma / Q000276:immunology / Q000517:prevention & control*; D003141:Communicable Diseases / Q000276:immunology*; D005260:Female; D006801:Humans; D006920:Hygiene; D007112:Immunity, Maternally-Acquired; D007231:Infant, Newborn; D008297:Male; D018448:Models, Immunological; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology / Q000276:immunology*; D012111:Residence Characteristics; D012307:Risk Factors