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Comparative COVID-19 Vaccines Effectiveness in Preventing Infections, Hospitalizations, and Deaths with SARS-CoV-2 BA.5 and Ba.2 Omicron Lineages: A Case-Case and Cohort Study Using Electronic Health Records in Portugal

2022-08-03

Abstract excerpt

Background: In the context of a highly vaccinated population and multiple Omicron lineages circulation, it is relevant to clarify the effect of vaccination and previous infections on the risk of infection and severe post-infection outcomes. This study aimed to measure the comparative vaccine effectiveness of primary and booster vaccination between Omicron BA.5 and BA.2 lineages against infection and compare lineag...

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Literature Corpus work
2394d995-50ea-5ca9-8d92-8aefcb8de79a
DOI
10.2139/ssrn.4180482
Open publication

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Comparative COVID-19 Vaccines Effectiveness in Preventing Infections, Hospitalizations, and Deaths with SARS-CoV-2 BA.5 and Ba.2 Omicron Lineages: A Case-Case and Cohort Study Using Electronic Health Records in PortugalDOI 10.2139/ssrn.4180482
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