title: Request for reports of disease after immunization with Hib polysaccharide vaccine.
mesh_terms: D001428:Bacterial Vaccines / Q000009:adverse effects*; D002675:Child, Preschool; D006193:Haemophilus influenzae / Q000276:immunology*; D006801:Humans; D007223:Infant; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D001428:Bacterial Vaccines