Tag Archives: covid vaccination

Omicron: evidence shows it evades immunity from earlier infection more than other variants

South Africa is seeing a spike in COVID-19 cases. EMMANUEL CROSET/AFP via Getty Images Cari van Schalkwyk, South African Centre for Epidemiological Modelling & Analysis (SACEMA) ; Harry Moultrie, National Institute for Communicable Diseases, and Juliet Pulliam, South African Centre for Epidemiological Modelling & Analysis (SACEMA) Scientists are working around the clock to get a better understanding of the Omicron …

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