title: Infections & asthma: the sicker the better?
authors.forename: D
authors.initials: D
authors.lastname: Rosen
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000209:etiology* / Q000517:prevention & control; D002648:Child; D002656:Child Day Care Centers; D002675:Child, Preschool; D006801:Humans; D009679:Nuclear Family; D012135:Respiratory Sounds; D012141:Respiratory Tract Infections; D014612:Vaccines
chemical_list: D014612:Vaccines