title: Pathogenesis of bronchiolitis--epidemiologic considerations.
mesh_terms: D000367:Age Factors; D000914:Antibodies, Viral / Q000032:analysis; D001990:Bronchiolitis, Viral / Q000453:epidemiology* / Q000276:immunology / Q000382:microbiology; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology; D004812:Epidemiologic Methods; D005260:Female; D006760:Hospitalization; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008431:Maternal-Fetal Exchange; D009657:North Carolina; D011247:Pregnancy; D012136:Respiratory Syncytial Viruses / Q000302:isolation & purification; D012737:Sex Factors; D012959:Socioeconomic Factors; D014481:United States
chemical_list: D000914:Antibodies, Viral