Australian Influenza Surveillance Report no.43 2010

[Wishart, Michael]

Dear All

The Australian Influenza Surveillance Report no.43 2010 which reports on
influenza activity up until 29 October 2010 has been produced.

Of note
Levels of influenza-like illness (ILI) in the community continued to
decrease through all surveillance systems this reporting period. Sporadic,regional or widespread activity was reported within jurisdictions. The
number of laboratory confirmed notifications also continued to decline.
There were 188 laboratory confirmed notifications of influenza during thisreporting period, including 86 pandemic (H1N1) 2009 cases. Queensland and
South Australia reported the highest number of notifications.
Results from sentinel laboratory surveillance systems for this reporting
period show that 11% of the respiratory tests conducted over this period
were positive for influenza, which is similar to the last reporting period(10%).
In 2010, a total of 1,370 specimens have been positive for influenza (of
15,333 specimens tested by sentinel laboratories), of which 65% were
pandemic (H1N1) 2009, 24% were influenza B, 9% were A/H3N2 and 2% were
influenza A untyped. The majority of influenza B positive specimens have
been from WA.
As at 29 October 2010, there have been 10,960 confirmed cases of influenzareported to the National Notifiable Diseases Surveillance System (NNDSS)
in 2010. A total of 44,235 confirmed cases of pandemic (H1N1) 2009 have
occurred in Australia since May 2009, including 6,599 in 2010.
This reporting period, sentinel hospitals reported four influenza related
admissions, including one for pandemic (H1N1) 2009, a decrease compared tothe last reporting period. ANZICS reported one ICU admission for
influenza.
The WHO has advised that the world is no longer in phase 6 of influenza
pandemic alert and has moved into the post pandemic period.

A summary version of this report will shortly be available on the web at
the following address:
http://www.healthemergency.gov.au/internet/healthemergency/publishing.nsf/Content/resources

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

Kind regards,

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

__________________________________________________________________________________________________________________________

Please note that the Influenza Surveillance Team, of the Vaccine
Preventable Disease Surveillance Section has a group e-mail address which
is 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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