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influenza

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The Commonwealth Chief Medical Officer Professor Jim Bishop has advised that until further notice children under 5 years of age should not receive the current seasonal Flu vaccine.

The H1N1 Swine flu vaccine can still be given.

The media release is reprinted below. There is a link at the bottom to download the original release.

CHIEF MEDICAL OFFICER Professor Jim Bishop AO
MD MMed MBBS FRACP FRCPA Commonwealth Chief Medical Officer
MEDIA STATEMENT 23rd April 2010

Due to a spike in the numbers of young children in Western Australia experiencing fever and convulsions following seasonal flu vaccinations, Australia’s Chief Medical Officer, Professor Jim Bishop, is advising all GPs and immunisation providers to stop giving seasonal flu vaccine to children five years and under until a cause is established.

This is a precautionary measure while the matter is being urgently investigated by health experts and the Therapeutic Goods Administration (TGA),

Professor Bishop said,

Until it can be established what factors are causing the apparent rise in fevers in some children in WA, I am writing to all immunisation providers to advice them not to administer season flu vaccine to all children 5 years of age and under until further notice.”

Professor Bishop said the medicines regulator, the TGA, is investigating the WA data as a matter of urgency to determine whether the adverse reactions reported in WA relate to the vaccine, or whether factors related to the program delivery in WA are involved.

The TGA has contacted CSL Ltd to confirm which batches of vaccine were used in WA and is obtaining samples of the vaccine to test in its laboratories to determine if there are any abnormalities in the batches of vaccine used in WA,

Professor Bishop said.

The TGA will be urgently reviewing data from WA Health about the adverse events and the vaccine distribution data to see if the rates of fever and convulsions are truly higher than expected. The TGA is convening an expert scientific advisory panel to review the information from WA, and is seeking additional information from the manufacturer, CSL Ltd, and from regulatory colleagues internationally. TGA will test batches of the vaccine used in WA for any abnormalities.

The Department of Health and Ageing has sought advice from the Australian Technical Advisory Group on Immunisation. which is currently reviewing the available information on cases and the Department will be seeking its further advice. States and territories have been asked to report any adverse events related to seasonal influenza urgently to the Therapeutic Goods Administration. States and territories have also been asked to provide details on batch numbers and type of vaccine.

Professor Bishop said people over five years of age can continue to be vaccinated against seasonal influenza as per usual. Flu can be a serious disease especially in people who are in high risk categories including people aged 65 years and over; all Aboriginal and Torres Strait Islander people aged 15 years and over and pregnant women. The Commonwealth Government provides the seasonal flu vaccine is free for these at risk groups.

Professor Bishop said that there do not appear to be implications for the swine flu vaccine Panvax®.

It is safe to have the swine flu vaccine. The TGA’s assessment of clinical trials and the advice of its expert committees is that Panvax® is a safe, effective vaccine for prevention of the H1N1 influenza.

It is expected that the dominant flu this winter season will be swine flu and the specific Panvax vaccine is available free for all Australians.

Media contact: Kay McNiece, 0412 132 585

Seasonal Flu Vaccine and Young Children Media Release (31)

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NPR, the public radio broadcaster in the USA has developed a great animation showing how the influenza virus multiplies and spreads. The general principles in replication can be used when thinking about any viral infection.

The animation is coloured to make it more visually appealing. It is NOT how it looks in the body!

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News

  • Breast screening at overload. Indigenous have lowest participation rates http://bit.ly/43CHRD
  • MJA article suggests more nicotine replacement therapies should be available for indigenous people http://bit.ly/1D6LW9
  • Chlamydia cases increased by 10% last year. STI rates in indigenous also higher than rest of population http://bit.ly/KDqlS
  • HIV infection among Aboriginal people was attributed to injecting drug use in 22 per cent of cases over the past 5yrs. http://bit.ly/1stayc
  • New 12 station renal unit under construction in Alice Springs.Boost capacity by 20% http://bit.ly/HN1Of -will border areas be given access?
  • Smoking is the single biggest factor responsible for the gap between the health of Indigenous and non-Indigenous people http://bit.ly/ezHNP
  • Qld Health spent $22k in accommodation for renal patient as no dialysis unit at home. Unit would cost $40k http://bit.ly/onOAz staff costs?
  • Anwernekenhe National Aboriginal &TI HIV/AIDS Alliance launched. to bring down Indigenous HIV rates http://bit.ly/FRsYm
  • National Indigenous Health Equality Council has first meeting with Snowdon, Minister for Indigenous Health http://bit.ly/pWubU
  • Indigenous pandemic protection ‘a long way off’ for South Australia’s Aboriginal communities http://bit.ly/Z3SOO
  • serious gaps in diagnosis & treatment of people at risk from heart attacks. Good news-Aboriginal people treated better! http://bit.ly/18JO96

The Indigenous News Updates are sourced from news and other articles from around the country that I have posted on Twitter. Image source: OpenClipArt.org, public domain.

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Over at Croakey, Crikey.com.au’s health blog there is an interesting article on why submissions to the Victorian government on why proposals for developing healthcare identifiers and related privacy legislation should be public. One of the case studies used in his argument is the need to track any potential adverse effects from influenza vaccination, particularly H1N1.

One of the crucial requirements he states is to determine “whether or not the current vaccine for seasonal influenza affords any protection against the new H1N1 variant”.

My gut feeling from what I have seen is there is little or no protection. This also seems to be the results from a study reported in Eurosurveillance:

Interim analysis of pandemic influenza (H1N1) 2009 in Australia: surveillance trends, age of infection and effectiveness of seasonal vaccination

There was no evidence of significant protection from seasonal vaccine against pandemic influenza virus infection in any age group.

It seems we will be up for a huge vaccination effort (possibly two vaccinations, one month apart) from some time after October.

There is more information on the just received Promed email listing available through the International Society of Infectious Diseases. Look for “PRO/AH/EDR> Influenza pandemic (H1N1) 2009 (25): Australia, UK, updates” (note: later check shows linkbroken). Some of the links in the Promed e-mail are worth a look:

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