Cite
MLA Citation
Sara Carazo et al.. “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.” Lancet infectious diseases, vol. 23, no. 1, 2023, pp. 45–55. http://access.bl.uk/ark:/81055/vdc_100173089449.0x00000e