FW: Australian Influenza Surveillance Report no.9 2011

[Wishart, Michael]

—–Original Message—–
Dear all,

The Australian Influenza Surveillance Report no.9 2011 which reports on
influenza activity up until 22 July 2011 has been produced.

Of note:
Levels of influenza-like illness (ILI) in the community continued to
increase through both sentinel general practitioner surveillance systems
and ILI presentations to emergency departments.
Notifications have continued to rise nationally, with notifications
highest in Queensland, New South Wales and South Australia. In recent
weeks, influenza notifications have started to increase in Victoria,
Western Australia and the Australian Capital Territory.
During this reporting period there were 2,333 laboratory confirmed
notifications of influenza, with Queensland reporting the highest number
of notifications, followed by New South Wales and South Australia. The
majority of virus detections have been pandemic (H1N1) 2009, with
co-circulation of influenza B.
Influenza B in South Australia has continued to represent the majority of
their notifications (72%), and also accounted for over a third of all
influenza B reported nationally over this period. Queensland and New SouthWales have reported mostly pandemic (H1N1) 2009, with co-circulation of
influenza B.
As at 22 July 2011, there have been 10,060 confirmed cases of influenza
reported to the National Notifiable Diseases Surveillance System (NNDSS)
in 2011, compared with 1,571 for the same period in 2010. It should be
noted that over the 2011 summer months, all jurisdictions reported higher
than usual numbers of notifications and this season commenced very early.
The WHO has reported that influenza activity in the temperate countries ofthe northern hemisphere remains at baseline inter-seasonal level.
Countries in the tropical zone mostly report low influenza activity. The
influenza season in South Africa appears to have recently peaked and in
New Zealand, rates of national ILI consultations have not crossed baselinelevels.
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

Kind regards,

Influenza Surveillance Team
| Vaccine Preventable Diseases Surveillance | Health Protection &
Surveillance Branch | Office of Health Protection | Department of Health
and Ageing |
Please note that the Influenza Surveillance Team, of the Vaccine
Preventable Diseases Surveillance Section has a group e-mail address whichis flu@health.gov.au. While you can still email individual members of theteam, this email address will ensure prompt responses and will avoid
delays when individual staff members are absent.

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