See Catch-up guidelines for individual vaccines for children <10 years of age for important details, including for Hib, MenB (meningococcal B) and pneumococcal vaccines.

These are not the routinely recommended intervals between vaccine doses. These minimum intervals are only to be used for catch-up vaccination. Catch-up using a combination vaccine must meet the minimum intervals for all antigens.

Vaccine Minimum interval between doses 1 and 2 Minimum interval between doses 2 and 3 Minimum interval between doses 3 and 4 Minimum interval between doses 4 and 5
DTPa 4 weeks 4 weeks 6 months 6 months (unless dose 4 received at >3.5 years of age, then dose 5 is not needed)
Hepatitis A (Aboriginal and Torres Strait Islander children living in NT, Qld, SA and WA only) 6 months na na na
Hepatitis B (excluding birth dose) 1 month 2 months (minimum interval between dose 1 and 3 is 4 months) na na
MMR 4 weeks na na na
Poliovirus (IPV) 4 weeks 4 weeks 4 weeks na
MenACWY vaccine (at 12 months of age) (infants with certain immunocompromising conditions need extra doses — see Meningococcal disease) 8 weeks (Menveo and Menactra only; Nimenrix is given as single dose) na na na
Rotavirus 4 weeks (must be within upper age limit) 4 weeks (for RotaTeq 3rd dose in schedule) na na
Varicella 4 weeks na na na

DTPa = diphtheria-tetanus-acellular pertussis; IPV = inactivated poliovirus; MenACWY = meningococcal ACWY; MMR = measles-mumps-rubella; na = not applicable

Last updated: 
5 June 2018
Last reviewed: 
3 January 2019

Definitions

DTPa
diphtheria-tetanus-acellular pertussis vaccine
WA
Western Australia
MMR
measles-mumps-rubella
IPV
inactivated poliomyelitis vaccine