Schilder, A.G.

children study pneumococcal serotype exposure vaccination month resistance atopic dermatitis effect atopic group vaccine cluster genotype ets exposure infection postnatal ets exposure allergy conjugate smoking tract infections netherland otiti 3 months postnatal result dermatiti streptococcus pneumoniae questionnaire otitis media population parent factor pneumoniae pneumococcal conjugate vaccination pregnancy pneumococci atopic status rfel genotypes table tract strain 4 years association child streptococcu disease colonization level wheeze media education smoke tobacco smoke utrecht analysis piama carriage atopy antibiotic signi switch age range department pneumococcal resistance effect modi fication interaction nonvaccine serotypes capsular article tobacco birth risk factors event outcome nonvaccine health microbiol capsular switch