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2021 年,在 Alpha 和 Delta 主导流行期间,成年人(≥20 岁)中 COVID-19 住院的疫苗有效性:I-MOVE-COVID-19 和 VEBIS SARI VE 网络,欧洲。

Vaccine effectiveness against COVID-19 hospitalisation in adults (≥ 20 years) during Alpha- and Delta-dominant circulation: I-MOVE-COVID-19 and VEBIS SARI VE networks, Europe, 2021.

机构信息

Epiconcept, Paris, France.

European Centre for Disease Prevention and Control, Stockholm, Sweden.

出版信息

Euro Surveill. 2023 Nov;28(47). doi: 10.2807/1560-7917.ES.2023.28.47.2300186.

DOI:10.2807/1560-7917.ES.2023.28.47.2300186
PMID:37997666
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10668259/
Abstract

IntroductionTwo large multicentre European hospital networks have estimated vaccine effectiveness (VE) against COVID-19 since 2021.AimWe aimed to measure VE against PCR-confirmed SARS-CoV-2 in hospitalised severe acute respiratory illness (SARI) patients ≥ 20 years, combining data from these networks during Alpha (March-June)- and Delta (June-December)-dominant periods, 2021.MethodsForty-six participating hospitals across 14 countries follow a similar generic protocol using the test-negative case-control design. We defined complete primary series vaccination (PSV) as two doses of a two-dose or one of a single-dose vaccine ≥ 14 days before onset.ResultsWe included 1,087 cases (538 controls) and 1,669 cases (1,442 controls) in the Alpha- and Delta-dominant periods, respectively. During the Alpha period, VE against hospitalisation with SARS-CoV2 for complete Comirnaty PSV was 85% (95% CI: 69-92) overall and 75% (95% CI: 42-90) in those aged ≥ 80 years. During the Delta period, among SARI patients ≥ 20 years with symptom onset ≥ 150 days from last PSV dose, VE for complete Comirnaty PSV was 54% (95% CI: 18-74). Among those receiving Comirnaty PSV and mRNA booster (any product) ≥ 150 days after last PSV dose, VE was 91% (95% CI: 57-98). In time-since-vaccination analysis, complete all-product PSV VE was > 90% in those with their last dose < 90 days before onset; ≥ 70% in those 90-179 days before onset.ConclusionsOur results from this EU multi-country hospital setting showed that VE for complete PSV alone was higher in the Alpha- than the Delta-dominant period, and addition of a first booster dose during the latter period increased VE to over 90%.

摘要

简介

自 2021 年以来,两个大型欧洲多中心医院网络已对 COVID-19 的疫苗有效性(VE)进行了估计。

目的

我们旨在衡量 2021 年期间 Alpha(3 月至 6 月)和 Delta(6 月至 12 月)主导时期在住院严重急性呼吸道疾病(SARI)患者中≥20 岁的 PCR 确诊 SARS-CoV-2 的 VE,合并这些网络的数据。

方法

来自 14 个国家的 46 家参与医院使用基于病例对照的无差异设计遵循类似的通用方案。我们将完整的初级系列疫苗接种(PSV)定义为两剂或一剂疫苗的两剂或一剂疫苗接种剂量≥14 天前开始。

结果

在 Alpha 和 Delta 主导时期,我们分别纳入了 1087 例(538 例对照)和 1669 例(1442 例对照)。在 Alpha 时期,对于完全接种 Comirnaty PSV 的住院 SARS-CoV2 ,总体 VE 为 85%(95%可信区间:69-92),年龄≥80 岁的 VE 为 75%(95%可信区间:42-90)。在 Delta 时期,对于症状发作后≥20 岁的 SARI 患者,从最后一次 PSV 剂量开始≥150 天,完全接种 Comirnaty PSV 的 VE 为 54%(95%可信区间:18-74)。在最后一次 PSV 剂量后≥150 天接受 Comirnaty PSV 和 mRNA 加强针(任何产品)的人群中,VE 为 91%(95%可信区间:57-98)。在时间-接种疫苗分析中,对于最后一剂疫苗接种<90 天前发病的患者,完全接种所有产品 PSV 的 VE>90%;对于 90-179 天前发病的患者,VE≥70%。

结论

我们在欧盟多国医院环境中的这项研究结果表明,在 Alpha 主导时期,单独进行完整 PSV 的 VE 高于 Delta 主导时期,而在后者时期增加第一剂加强针的剂量可将 VE 提高到 90%以上。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7606/10668259/f77188c76ec0/2300186-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7606/10668259/005b36b1d730/2300186-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7606/10668259/87c8ffa3e254/2300186-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7606/10668259/f77188c76ec0/2300186-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7606/10668259/005b36b1d730/2300186-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7606/10668259/87c8ffa3e254/2300186-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7606/10668259/f77188c76ec0/2300186-f3.jpg

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