Pertussis – An under-diagnosed disease with high morbidity in Singaporean children

Since the introduction of the pertussis vaccine into the standard immunization program, very few cases of pertussis have been detected. In 2007, it was felt that the number of cases being admitted for pertussis had increased and this was verified on a retrospective review done from 2004 to 2007 of children diagnosed with pertussis in KK Women\'s and Children\'s Hospital.

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