Australia’s trusted immunisation experts
06 February 2024
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Calculation of vaccination coverage estimates at the national and jurisdictional level can hide pockets of low coverage within a state and within a capital city. By calculating vaccination coverage for smaller geographical areas, it is possible to examine differences in vaccination coverage within states and within capital cities to identify specific areas of low coverage. NCIRS does this via thematic mapping techniques at the small area level using the ABS-defined Statistical Area 3 (SA3). SA3 is chosen because each SA3 is small enough to show differences within jurisdictions but not too small to render maps unreadable. These thematic maps are updated on an annual basis.