COVID-19 vaccine effectiveness against severe disease from SARS-CoV-2 Omicron BA.1 and BA.2 subvariants - surveillance results from southern Sweden, December 2021 to March 2022.

IF 2.9 Q2 HOSPITALITY, LEISURE, SPORT & TOURISM

International Journal of Hospitality & Tourism Administration Pub Date : 2022-05-01 DOI:10.2807/1560-7917.ES.2022.27.18.2200322

Jonas Björk, Carl Bonander, Mahnaz Moghaddassi, Magnus Rasmussen, Ulf Malmqvist, Malin Inghammar, Fredrik Kahn

引用次数: 0

Abstract

We compared vaccine effectiveness against severe COVID-19 between December 2021 and March 2022 when Omicron BA.1 and BA.2 were the dominating SARS-CoV-2 variants in Scania county, Sweden. Effectiveness remained above 80% after the transition from BA.1 to BA.2 among people with at least three vaccine doses but the point estimate decreased markedly to 54% among those with only two doses. Protection from prior infection was also lower after the transition to BA.2. Booster vaccination seems necessary to maintain sufficient protection.

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COVID-19 疫苗对 SARS-CoV-2 Omicron BA.1 和 BA.2 亚变体引起的严重疾病的有效性 - 2021 年 12 月至 2022 年 3 月瑞典南部的监测结果。

2021 年 12 月至 2022 年 3 月期间，Omicron BA.1 和 BA.2 是瑞典斯堪尼亚县的主要 SARS-CoV-2 变种，我们比较了这一时期疫苗对严重 COVID-19 的有效性。从 BA.1 过渡到 BA.2 后，在至少接种过三针疫苗的人群中，有效率仍保持在 80% 以上，但在只接种过两针疫苗的人群中，点估计值明显降低到 54%。从 BA.2 过渡到 BA.1 后，对先前感染的保护也降低了。为了保持足够的保护作用，似乎有必要加强接种。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Hospitality & Tourism Administration HOSPITALITY, LEISURE, SPORT & TOURISM-

CiteScore

6.30

自引率

8.60%

发文量

期刊介绍： The International Journal of Hospitality & Tourism Administration is an applied, internationally oriented hospitality and tourism management journal designed to help practitioners and researchers stay abreast of the latest developments in the field as well as facilitate the exchange of ideas. The journal addresses critical competency areas that will help practitioners be successful in this growing field now and into the future. An exciting and challenging international forum, the journal reflects current happenings and trends in the industry.