title: Whooping cough is still a problem...chickenpox cases decline when vaccine is used...and a guide for parents about vaccinations.
mesh_terms: D002644:Chickenpox / Q000453:epidemiology* / Q000517:prevention & control; D019433:Chickenpox Vaccine / Q000008:administration & dosage*; D002648:Child; D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000008:administration & dosage*; D004196:Disease Outbreaks; D017408:Guidelines as Topic; D006801:Humans; D014481:United States / Q000453:epidemiology; D014917:Whooping Cough / Q000453:epidemiology* / Q000517:prevention & control
chemical_list: D019433:Chickenpox Vaccine; D015721:Diphtheria-Tetanus-Pertussis Vaccine