Science

Study suggests past COVID infection may not fend off omicron

An Orange Farm, South Africa, resident receives her jab against COVID-19 Friday Dec. 3, 2021 at the Orange Farm multipurpose center. South Africa has accelerated its vaccination campaign a week after the discovery of the omicron variant of the coronavirus. (AP Photo/Jerome Delay) XJD116 XJD116

South African scientists are warning that the new omicron variant may be causing more reinfections among COVID-19 survivors than earlier virus mutants.

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