Immunised against influenza (PI14)
This indicator is the proportion of First Nations regular clients aged 6 months and over who received an influenza immunisation within the previous 12 months.
It is collected for males and females in age groups:
- 6 months–4 years
- 5–14 years
- 15–24 years
- 25–34 years
- 35–44 years
- 45–54 years
- 55–64 years
- 65 years and over.
There have been changes to the specification of this indicator over time. For more information see Interpreting nKPI data.
Why immunisation against influenza is important
Influenza (the flu) is a contagious respiratory disease that causes seasonal epidemics in Australia. Anyone can be infected with influenza but some people, such as First Nations people, have a higher chance of serious illness and complications (AIHW and NIAA 2024). Annual influenza vaccination substantially reduces the risk of hospitalisation and death from influenza and pneumonia for First Nations people.
At June 2025, 20% of (or around 72,300) First Nations regular clients aged 6 months and over received an influenza immunisation within the previous 12 months (Figure 27).
The data visualisation below (Figure 27) shows, for each collection period from December 2020 to June 2025, the proportion of First Nations regular clients aged 6 months and over who received an influenza immunisation within the previous 12 months. Select by either:
- organisation type
- remoteness
- state/territory
- age group/sex
to see data for that breakdown.
Data tables supporting this visualisation are available at Data.
Figure 27: Immunised against influenza by collection period
Overall, the proportion of First Nations regular clients aged 6 months and over who received an influenza immunisation within the previous 12 months showed little or no change between December 2022 and June 2025.
Notes
- In December 2020, specifications changed for this indicator and data from that point on cannot be compared with previous periods. For more information see Interpreting nKPI data.
- A break is included to separate out the periods most affected by voluntary reporting and the peak of COVID-19 and associated emergency response measures. This break, however, is not a clean break as each indicator in the nKPI collection has an assigned time frame (a reference period) as part of its specification. For this indicator, which has a reference period of 12 months, data in the December 2022 collection period (covering 1 January 2022 to 31 December 2022) still overlaps with the peak of COVID-19 and associated emergency response measures. For more information see Comparisons over time .
- The linear trend lines provide a general impression of the direction of the data. Caution should be taken interpreting trends with less than 5 data points. See also Figure 20 for trends for selected data.
- For more information, including on interpreting changes over time, see Technical notes.
Reference
Australian Institute of Health and Welfare and National Indigenous Australians Agency (2024) Measure 3.02 Immunisation, Aboriginal and Torres Strait Islander Health Performance Framework website, AIHW, Australian Government, accessed 17 October 2025.