イギリスの2010年第35週08月30日ー09月05日の新型インフルエンザの最新感染状況の報告

イギリスの2010年第35週08月30日ー09月05日の新型インフルエンザの最新感染状況の報告

United Kingdom of Department of Health(http://www.dh.gov.uk/)
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>> 16 Septembre 2010
Weekly epidemilogical update

イギリスの風邪インフルエンザの最新感染状況の報告
2010年第35週08月30日ー09月05日の風邪インフルエンザ感染状況
イギリスでは、風邪インフルエンザ感染の伝染は、非常に低い。
イングランド(ENGLAND)地方では、風邪症状(influenza-like illness:LIL)の医師の診断面接率は、人口10万0000人に付き、2'5で、ウェイルズ(WALES)地方では、2'6で、北アイルランド(Northen Ireland)地方では、風邪インフルエンザや風邪症状の診察面接率は、11'4で、スコットランド(SCOTLAND)地方では、風邪症状診察率は、26'1から、29'8に増加している。
2010年第35週08月30日ー09月05日には、ヴィールス見張り番(監視)家庭医体制では、1件も試料を採取せず、報告はなかった。2010年第33週08月16日ー08月22日や、2010年第34週08月30日ー08月29日に採取された4件の試料のうち、1件も風邪インフルエンザの陽性反応が出なかった。最後に家庭医によるヴィールス見張り番(監視)体制で、新型インフルエンザ(ブタ風邪)が検出されたのは、2010年第16週04月19日ー04月25日だった。注意:最近の
統計では、1週間に10件以下の試料が検査された場合には、陽性反応は、省略されているので、最近の統計数字は、変わる可能性がある!!
今までに検査された6379件(6'379)の新型インフルエンザ(ブタ風邪)ビールスのうち、45件は、OSELTAMIVIR(タミフル)の効かない変異新型インフルエンザ(ブタ風邪)ヴィールスH274Yだった。45件の変異ヴィールスH274のうち、15件は、新型インフルエンザ治療薬のOSELYAMIVIR(タミフル)が効かないとブ、検査されて、確認された。しかしZANAMIVIRには、効果がある。
最近では、新型インフルエンザ(ブタ風邪)感染による入院患者が、報告されている。数件は、南半球の風邪感染地域と関係があり、(感染地域のオーストラリアやニュージーランドに旅行して感染て来た?)、何件かは既成症状の持病持ちだった。新型インフルエンザ(ブタ風邪)が発生してから、ENGLAND地方では、474人の新型インフルエンザ感染死者が出て、SCOTLAND地方では、69人、WALES地方では、28人、NORTHEN IRELAND地方では、18人で、イギリス全土では、589人の新型インフルエンザ感染確認死者がでた。


A short weekly summary of activity is provided over the summer period. Should activity increase, a fuller report will be published.

More information about the indicators used in this report can be found on the HPA website

Summary for 9 September 2010 (Week 36)
•Influenza activity is very low and stable across the UK.
•In week 35 (ending 5 September), the RCGP weekly influenza-like illness (ILI) consultation rate in England was 2.5 per 100,000, in Wales the influenza rate was 2.6 per 100,000, in Northern Ireland the combined influenza and ILI rate was 11.4 per 100,000 and in Scotland the ILI rate increased from 26.1 to 29.8 per 100,000 (figure 1). The QSurveillance ILI rate was 2.2 per 100,000. In all schemes, the rate remains below the baseline level.
Figure 1: Weekly GP influenza/influenza-like illness consultation rates in the UK.



•The RCGP consultation rates for acute bronchitis are at low levels. Respiratory syncytial virus and parainfluenza activity, according to the number of detections reported from HPA/NHS laboratories, remain at low levels.
•No respiratory specimens were reported as collected through the English GP sentinel virological schemes in week 35; none of the four collected in weeks 33 and 34 were positive for influenza; the last pandemic influenza detection through these schemes was in week 16 (ending 25 April) (figure 2).
Figure 2: Weekly number and proportion of specimens collected through GP sentinel virological schemes positive for influenza (England only).



NB. Data for the most recent weeks are subject to change due to reporting lag; proportion positive omitted if fewer than 10 specimens tested in one week.

•Forty-five of 6,379 pandemic (H1N1) 2009 viruses tested have been confirmed to carry a mutation which confers resistance to the antiviral drug oseltamivir; 15 of the 45 viruses have been tested and confirmed to be phenotypically resistant to the drug but retain sensitivity to zanamivir.
•There has been a small number of hospitalised cases of influenza due to pandemic (H1N1) 2009 reported in recent weeks; several with links to affected areas in the Southern hemisphere and some with underlying risk factors for severe disease. Since the beginning of the pandemic, there have been 474 deaths reported due to pandemic (H1N1) 2009 in the UK; 359 in England, 69 in Scotland, 28 in Wales and 18 in Northern Ireland.
•Outbreaks of acute respiratory disease should be reported to Health Protection Units and to respcdsc@hpa.org.uk.
•The UK pandemic influenza vaccination programme continues for people at high risk of severe disease. For further information see the Department of Health website. For information on the 2010/11 annual influenza immunisation programme see the CMO letter or the Department of Health Green Book.
•In Australia, in the fortnight ending 20 August 2010, most states reported 'regional' or 'widespread' activity. The national ILI consultation rate has had a slight upward trend in recent weeks, but is still below the levels experiences in previous years. The majority of influenza viruses have been pandemic (H1N1) 2009 but some seasonal H3 viruses have been detected. For further information see the Australian health website.In New Zealand, in week 34 the weekly ILI consultation rate remained above the baseline level, but had decreased. The majority of states reported 'local' activity. The majority of influenza viruses have been pandemic (H1N1) 2009. For further information see the New Zealand Public Health Service website.In India, the current epidemic remains regionally intense in the capital and several western and southern states. A number of other states, primarily in western and northern India, reported small numbers of new cases during the third week of August 2010, suggesting that low level circulation of H1N1 2009 may be more geographically extensive. The majority of recent influenza virus isolations have been characterized as H1N1 2009. For further information see the WHO website.