The tide has turned.
D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D010567:Pertussis Vaccine / Q000627:therapeutic use; D006113:United Kingdom; D014917:Whooping Cough / Q000453:epidemiology* / Q000517:prevention & control
D010567:Pertussis Vaccine