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ECDC EXECUTIVE UPDATE 2009 pandemic influenza A(H1N1) Issue 29 Monday, 08 February 2010: 2634 (+ 78) deaths in EU and EFTA countries

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  • ECDC EXECUTIVE UPDATE 2009 pandemic influenza A(H1N1) Issue 29 Monday, 08 February 2010: 2634 (+ 78) deaths in EU and EFTA countries

    ECDC EXECUTIVE UPDATE 2009 pandemic influenza A(H1N1) Issue 29 Monday, 08 February 2010: 2634 (+ 78) deaths in EU and EFTA countries




    ECDC EXECUTIVE UPDATE 2009 pandemic influenza A(H1N1) Issue 29 Monday, 08 February 2010

    Weekly influenza surveillance overview highlights

    ? The 2009 influenza A(H1N1) pandemic is well past its peak in EU/EEA countries and medium intensity transmission was confined to five countries, all in Eastern or South-eastern Europe. Elsewhere intensity was low.

    ? Transmission of the pandemic virus continues at low levels on a local or regional basis in another six countries

    ? Of the 816 specimens collected by sentinel physicians, 9% were found positive for influenza A virus.

    ? There is no indication of any increase in the incidence of non-pandemic influenza viruses since the beginning of the New Year. Overall since week 40/2009, 99% of all subtyped specimens were identified as pandemic virus.

    ? The number of reported cases of severe acute respiratory infection, SARI, continued to decline. Of the 41 SARI cases for whom underlying conditions were noted, 11 (27%) had no known underlying condition.

    The ECDC Weekly influenza surveillance overview is published on Friday afternoons on the 2009 pandemic influenza A(H1N1) web page (see ?latest publications?).

    Updates from Eurosurveillance
    In Eurosurveillance Volume 15, Issue 5, 4 February 2010 the following articles related to the 2009 influenza A(H1N1) pandemic were published:
    Higher all-cause mortality in children during autumn 2009 compared with the three previous years: pooled results from eight European countries
    A Mazick, B Gergonne, F Wuillaume, K Danis, A Vantarakis, H Uphoff, G Spiteri, T van 't Klooster, C Junker, M Holmberg, K M?lbak
    The paper describes weekly fluctuations of all-cause mortality observed in eight European countries during the period between week 27 and 51, 2009, in comparison with three previous years. Our preliminary data show that the mortality reported during the 2009 influenza pandemic did not reach levels normally seen during seasonal influenza epidemics. However, there was a cumulative excess mortality of 77 cases (1 per 100,000 population) in 5-14-year-olds, and possibly also among 0-4-year-olds.


    Estimating the impact of the 2009 influenza A(H1N1) pandemic on mortality in the elderly in Navarre, Spain
    J Castilla, J Etxeberria, E Ardanaz, Y Florist?n, R L?pez Escudero, M Guevara
    We analysed mortality among people aged 65 years or older in Navarre, Spain in 2009 and compared it with the mean for the same period of time in the previous three years. In the pandemic weeks 24 to 52 2009 we observed 4.9% more deaths than expected (p=0.0268). Excess mortality occurred during the circulation of seasonal influenza (8.0%, p=0.0367) and the first wave of pandemic influenza (9.9%, p=0.0079). In the second wave of pandemic influenza there was a non-significant excess of deaths (5.2%, p=0.1166). Surveillance of laboratory-confirmed severe influenza cases detected only one death in this age group.


    Public health developments
    Ninth update of EMA pharmacovigilance report
    As of early February 2010, more than 40 million people have been immunised with the new pandemic vaccines in Europe. None of the reactions thought to have been caused by vaccination are considered serious and there have been no deaths linked directly to the vaccine. In contrast, EU/EEA member states have reported more than 2500 deaths due to the pandemic virus. (...)
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