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Influence of Nasopharyngeal Viral Load on the Spread of the Omicron BA.2 Variant
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Edité par CCSD ; Oxford University Press (OUP) -
International audience. We used variant typing polymerase chain reaction to describe the evolution of severe acute respiratory syndrome coronavirus 2 Omicron sublineages between December 2021 and mid-March 2022. The selective advantage of the BA.2 variant over BA.1 is not due to greater nasopharyngeal viral loads.