2023 Flu Season Summary

2024 Flu Vaccination Proposal

This year, Australia experienced a peak of flu at the end of June, about two weeks later than last year. Data from the Australian Immunisation Register shows almost 8.7 million people have been vaccinated between March and July. 

The 2023 Flu Season was one of the worst season on record since 2019. With the increase in flu cases rising significantly in 2023 compared to 2022 (near 10% increase already, and that is without the full 2023 year results) it is important for national vaccination rates are improved for 2024.

Flu Season’s peak month of June versus 2019 Flu Season’s peak month of July. Fortunately, and in line with the increased uptake of influenza vaccinations during May and June, the number of new influenza cases decreased from July onwards, and an elongated flu season appears to have been mitigated.

Confirmed Influenza Cases 2018-2023

Line graph displaying confirmed influenza cases for the periods 2018-2023
Reference: These statistics are taken from the Aust Government Department of Health, National Notifiable Diseases Surveillance System

Click the chart to view an enlarged version

2024 flu vaccination program

Table of Contents

Vaccination rates decreased in all states and territories, with the biggest drops recorded in:

South Australia (down 20.6%)
New South Wales (down 19.5%)
Victoria (down 18.9%)
Queensland (down 18.6%).

Children aged six months to five years are among the least likely to be vaccinated.

Meanwhile, there have been 116,473 influenza notifications reported to the National Notifiable Diseases Surveillance System between January 1 to June 25, 2023.

Decrease in Flu Vaccinations by State and Territory

State/Territories Decrease in flu vaccinations (%)
Australia
17.7
Australian Capital Territory
8.9
New South Wales
19.5
Northern Territory
17.3
Queensland
18.7
South Australia
20.6
Tasmania
17.1
Western Australia
5.5
Victoria
18.9

ABC News / Source Australian Immunisation Register

2023 Influenza Vaccination % coverage* - by jurisdiction - all people

AGE ACT NSW VIC QLD SA WA TAS NT AUS
6mo - 5yrs
48.5
26.1
31
23
27
26.6
31.3
29.2
27.4
5 - 15 yrs
24.2
18.8
16.9
14.3
15.3
18.4
16
13.2
15.8
16 - 50 yrs
32.3
20.4
24.5
19.9
24.6
21.5
24.4
20.7
22
51 - 65 yrs
45.8
33.9
38.2
35.5
40.3
37.2
44.1
26.5
36.4
66+ yrs
67.3
60.3
63.8
63.4
67.9
64.3
70
35.9
62.9

Coverage calculated using vaccinations given 01 Mar – 12 Aug 2023 (inclusive) AIR data as at 13 Aug 2023. Coverage data in these tables may differ slightly from estimates published elsewhere due to differences in calculation methodologies and/or the AIR data being used in the calculations having being downloaded on different dates.