The evolution and interpretation of seroprevalence of SARS-CoV-2 antibodies among South African blood donors from the Beta to Omicron variant-driven waves
Vermeulen M, Mhlanga L, Sykes W, Cable R, Coleman C, Pietersen N, Swanevelder R, Glatt TN, Bingham JL, van den Berg K, Grebe PE, Welte A