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Abstract

For the period of predominance of SARS-CoV-2 Omicron variant in Slovenia, February to March 2022, we estimated mRNA vaccine effectiveness (VE) against severe acute respiratory infection (SARI) COVID-19 using surveillance data. In the most vulnerable age group comprising individuals aged 65 years and more, VE against SARI COVID-19 was 95% (95% CI: 95–96%) for those vaccinated with three doses, in comparison to 82% (95% CI: 79–84%) for those vaccinated with two doses. Such levels of protection were maintained for at least 6 months.

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/content/10.2807/1560-7917.ES.2022.27.20.2200350
2022-05-19
2024-03-29
http://instance.metastore.ingenta.com/content/10.2807/1560-7917.ES.2022.27.20.2200350
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