摘要：This report summarises national passive surveillance data collated in the Adverse Drug Reactions Advisory Committee (ADRAC) database at 30 September 2006 for adverse events following immunisation (AEFI) reported for children aged less than 7 years who received vaccines between 1 January and 30 June 2006.1–3It is the fi rst full reporting period for AEFI data following the introduction of a new National Immunisation Program (NIP) schedule, which commenced on 1 November 2005. From that date, varicella vaccine was introduced for children at 18 months of age and inactivated poliovirus vaccines (IPV) replaced oral poliovirus vaccine (OPV) for chil-dren at 2, 4 and 6 months and 4 years of age. All chil-dren in Australia receive IPV in combined vaccines containing diphtheria-tetanus-acellular pertussis (DTPa) antigens (i.e DTPa-IPV; quadrivalent). In some states and territories, combined vaccines also include hepatitis B (HepB) (i.e. DTPa-IPV-HepB; pen-tavalent) or both HepB and Haemophilus in. uenzae type b (Hib) (i.e. DTPa-IPV-HepB-Hib; hexavalent).4As a result of these changes, DTPa and DTPa-HepB vaccines are no longer included in the NIP schedule
