Nature Communications (Aug 2022)
Protection of COVID-19 vaccination and previous infection against Omicron BA.1, BA.2 and Delta SARS-CoV-2 infections
Abstract
The protection of COVID-19 vaccines against emerging variants needs to be monitored. Here, the authors use community testing data from the Netherlands and find that protection against infection by Omicron subvariants BA.1 and 2 is low and that booster vaccines considerably but temporarily increase protection.