Prevalence of anti-SARS-CoV-2 antibodies among blood donors in Northern Cape, KwaZulu-Natal, Eastern Cape, and Free State provinces of South Africa in January 2021
Sykes W, Mhlanga L, Swanevelder R, Glatt TN, Grebe PE, Coleman C, Pieterson N, Cable R, Welte A, van den Berg K, Vermeulen M
