エボラウイルスが後期的に再発し,脳膜炎を引き起こす:症例報告
Michael Jacobs1, Alison Rodger2, David J Bell3
1Department of Infection, Royal Free London NHS Foundation Trust, London, UK.
Lancet (London, England)
|May 23, 2016
まとめ
エボラウイルスの後期的な再発は 回復から数ヶ月後でも起こり 中枢神経系に影響を及ぼします この発見は,エボラを生き延びた人々の間で新たな感染連鎖の可能性を常に警戒する必要性を強調しています.
科学分野:
- 感染症
- ウイルス学
- 神経学
背景:
- エボラウイルス (EVD) の生存者は,長期的な合併症に直面します.
- 免疫特権のある部位でのウイルスの持続は,遅い再発につながる可能性があります.
- エボラウイルス病の遅い重症再発は以前は記述されていませんでした.
研究 の 目的:
- 中枢神経系 (CNS) のエボラウイルスの後期的な再発を記述する.
- エボラウイルスの再発の臨床経過とウイルス学的特徴を調査する.
- エボラウイルスの生存者の将来の管理と公衆衛生の監視を伝えるために
主な方法:
- エボラウイルス病で治療を受けた39歳の看護婦は,退院後9ヶ月で髄膜炎の症状で再入院しました.
- エボラウイルスは脳脊髄液 (CSF) と血で検出され,ウイルスのゲノム配列解析が行われました.
- 患者はサポートケアと実験用抗ウイルス薬 GS-5734 を受けました
主要な成果:
- エボラウイルスのRNAは,CSFでプラズマよりも高いレベルで検出され,感染ウイルスはCSFからしか検出されなかった.
- 患者は脳膜炎を発症し,コルチコステロイドとGS- 5734の治療により臨床回復した.
- CSF エボラウイルスのRNAはGS-5734治療の14日後に検出できなくなり,ウイルスのゲノム配列は最小限の変化を示した.
結論:
- 特に中枢神経系において,エボラウイルス感染症の遅い重発が起こることがあります.
- この発見は,エボラウイルス感染の自然経緯を再評価することを必要としています.
- エボラを生き延びた人の再発感染に対する継続的な警戒は,公衆衛生上の感染の懸念のため極めて重要です.
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