アメリカ大陸における長期COVIDに対する予防接種:広範囲の見直し
Gabriela Zambrano-Sánchez1,2, Josue Rivadeneira1,3,4, Carlos Manterola3
1Unidad de Revisiones Sistemáticas y Metaanálisis-URMA, Facultad de Ciencias Médicas, Universidad Central del Ecuador, Quito 170403, Ecuador.
Vaccines
|August 28, 2025
まとめ
深刻な急性呼吸器症候群-コロナウイルス-2 (SARS-CoV-2) に対するワクチン接種は,アメリカ大陸で長期のCOVIDのリスクと期間を大幅に低下させます. しかし,ワクチンの有効性は,研究,集団,およびレジメンによって異なるため,さらなる地域研究が必要である.
科学分野:
- 感染症
- 免疫学
- 公衆衛生
背景:
- 長期COVIDは,SARS-CoV-2感染後に持続する症状として定義され,感染者の約10~20%に影響します.
- ラテンアメリカにおける長期のCOVID感染率とワクチンの有効性に関するデータは,高いワクチン接種率にもかかわらず,依然として限られている.
- アメリカ大陸における長期COVIDに対するワクチン接種の影響を理解することは,公衆衛生戦略にとって極めて重要です.
研究 の 目的:
- 中南米とカリブ海で長期間COVIDに罹患したワクチン接種された成人の研究を概要的に検討する.
- アメリカ大陸における長期COVIDの予防または緩和におけるSARS-CoV-2ワクチン接種の有効性に関する証拠をまとめること.
- 地域におけるワクチン接種と長期COVIDに関する文献のギャップを特定する.
主な方法:
- このレビューは,PRISMA-ScR (体系的なレビューのための優先報告項目と,スコーピングレビューのためのメタ分析の拡張) のガイドラインに従った.
- ワクチンを接種した長期間COVID患者に関する研究のために,複数のデータベースを徹底的に検索した.
- メキシコ,中央アメリカ,南アメリカ,カリブ海の集団に焦点を当てた研究では,ワクチンの種類と有効性の結果が分析されました.
主要な成果:
- 11, 333人の参加者を含む8つの研究が含まれており,そのほとんどは女性 (69. 3%) でした.
- ワクチン接種は,特に3回以上の接種で,長期COVIDのリスクと期間を大幅に減らすことが判明しました.
- 長いCOVIDの定義と評価されたアウトカムにおいて,含まれている研究で有意な変動が観察されました.
結論:
- SARS-CoV-2ワクチン接種は,アメリカ大陸における長期COVIDの負担を軽減する見込みを示しています.
- ワクチンの有効性における見られた不一致は,研究設計,集団の特徴,ワクチン接種方式の影響を示しています.
- 長期のCOVIDアウトカム管理におけるワクチン接種の役割を完全に理解し,最適化するために,さらに厳格な地域特有の研究が不可欠です.
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