- Australian Influenza Surveillance Report
- Previous Reports and Updates
- Annual Reports
- Accessibility Issues
The Australian Influenza Surveillance Report is published on a fortnightly basis during the influenza season, typically between May and October. Influenza activity updates will be published outside of the seasonal period.
- Influenza activity at the national level continued to increase this reporting fortnight with many surveillance systems at levels comparable to the peak of the 2016 season.
- High levels of influenza activity in the community are likely to continue for the next few weeks.
- There has been almost two and a half times the number of laboratory confirmed notifications of influenza reported to the National Notifiable Diseases Surveillance System this year when compared with the same period last year. An earlier season onset and introduction of rapid testing have contributed, in part, to this increase.
- Influenza-like illness (ILI) is increasing nationally. Influenza was the most common cause of ILI presentations to sentinel general practitioners this fortnight, with almost half of all patients presenting to sentinel general practitioners with ILI and tested were positive for influenza.
- Influenza A(H3N2) is currently the predominant circulating virus nationally, however influenza B viruses also continue to circulate.
- Notification rates this year to date have been highest in adults aged 85 years or older, with a secondary peak in young children, aged 5 to 9 years.
- Hospitalisations with confirmed influenza have increased overall this reporting fortnight, but have declined in the most recent week.
- Clinical severity for the season to date, as measured through the proportion of patients admitted directly to ICU and deaths attributed to pneumonia or influenza, is low.
- To date, based on antigenic characterisation of circulating influenza viruses, the seasonal influenza vaccines appear to be a moderate to good match for circulating virus strains, depending on the strain. Vaccine effectiveness estimates, which provide an indication of how well the vaccine provides protection against influenza, are only available towards the end of the influenza season.
- Australian Influenza Surveillance Report No 06 - 22 July to 04 August 2017 (PDF 1578 KB)
- Australian Influenza Surveillance Report No 06 - 22 July to 04 August 2017 (Word 1899 KB)
- Previous Reports - 2017
- Previous Reports - 2016
- Previous Reports and Updates - 2015
- Previous Reports and Updates - 2014
- Previous Reports - 2013
- Previous Reports - 2012
- Previous Reports - 2011
- Previous Reports - 2010
- Previous Reports - 2009
Should you encounter issues in accessing the information contained either on this webpage or within the downloadable full reports please email flu (email@example.com) or contact the Department of Health switchboard on 02 6289 1555 or 1800 020 103.top of page