The SARS-CoV-2 Omicron variant has demonstrated enhanced transmissibility and escape of vaccine-derived immunity. While first-generation vaccines remain effective against severe disease and death, robust evidence on vaccine effectiveness against all Omicron infections, irrespective of symptoms, remains sparse.
Jonathan J. Lau, Samuel M. S. Cheng, Kathy Leung, Leo C. H. Tsang, Kenny W. H. Yam, Sara Chaothai, Kelvin K. H. Kwan, Zacary Y. H. Chai, Tiffany H. K. Lo, Eric H. Y. Lau, Gabriel M. Leung, Malik Peiris & Joseph T.
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