ArticleThe Lancet. Infectious diseases2023

Protection against omicron (B.1.1.529) BA.2 reinfection conferred by primary omicron BA.1 or pre-omicron SARS-CoV-2 infection among health-care workers with and without mRNA vaccination: a test-negative case-control study.

Sara Carazo et al.PubMed ↗Full text ↗Publisher ↗

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