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Outcomes of laboratory‐confirmed <scp>SARS‐CoV</scp>‐2 infection in the Omicron‐driven fourth wave compared with previous waves in the Western Cape Province, South Africa
The objective was to compare COVID-19 outcomes in the Omicron-driven fourth wave with prior waves in the Western Cape, assess the contribution of undiagnosed prior infection to differences in outcomes in a context of high seroprevalence due to prior infection and determine whether protection against severe disease conferred by prior …