Rapid replacement of the Beta variant by the Delta variant in South Africa
Rapid replacement of the Beta variant by the Delta variant in South Africa
Abstract The Beta variant of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in South Africa in late 2020 and rapidly became the dominant variant, causing over 95% of infections in the country during and after the second epidemic wave. Here we show rapid replacement of the Beta variant …