Severity of SARS-CoV-2 Omicron XBB subvariants in Singapore
Pung, R.; Kong, X. P.; Lin, C.; Chae, S.-R.; Chen, M. I.-C.; Lee, V.; Ho, Z. J. M.
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Several XBB subvariants such as XBB.1.5, XBB.1.9, XBB.1.16 and XBB.2.3 co-circulate in Singapore. Despite the different viral properties of XBB.1.16 as compared to other XBB subvariants, comparison on their severity is limited. In this study, we investigate the outcomes of hospitalisation and severe COVID-19 infection in individuals infected with different XBB subvariants, adjusted for potential confounders such as age and vaccination history. Overall, our preliminary analysis showed no difference in the severity of different XBB variants.
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