FW: Australian Influenza Surveillance Report no.3. 2011 [SEC=UNCLASSIFIED]

[Wishart, Michael]

Dear All

The Australian Influenza Surveillance Report no.3. 2011 which reports on influenza activity up until 29 April 2011 has been produced.

Of note
* Levels of influenza-like illness (ILI) in the community have increased slightly compared to recent weeks, however they continue to remain low through the majority of ILI surveillance systems this reporting period.
* All jurisdictions have been reporting higher than usual numbers of laboratory confirmed influenza notifications over the summer months, however in recent weeks there has been a decline in the number of notifications in most jurisdictions.
* During this reporting period there were 175 laboratory confirmed notifications of influenza, which included 103 cases of influenza A untyped, 31 cases of pandemic (H1N1) 2009, 3 of A/H3N2 and 37 cases of influenza B. Queensland reported the highest number of notifications.
* As at 29 April 2011, there have been 3,141 confirmed cases of influenza reported to the National Notifiable Diseases Surveillance System (NNDSS) in 2011, compared with 651 for the same period in 2010.
* The WHO has reported that influenza activity in the Northern Hemisphere has returned to baseline levels in most areas, indicating the season is now ending.

A summary version of this report will shortly be available on the web at the following address:
http://www.health.gov.au/internet/main/publishing.nsf/Content/cda-surveil-ozflu-flucurr.htm

If you have any questions, comments or feedback please reply to flu@health.gov.au

[If you no longer wish to be on this distribution list please reply to flu@health.gov.au]

Kind regards,

Kristy Richards
Influenza Surveillance Team
Vaccine Preventable Disease Surveillance Section
Surveillance Branch
Office of Health Protection

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