Influence of Nasopharyngeal Viral Load on the Spread of the Omicron BA.2 Variant.

Migueres, Marion; Dimeglio, Chloé; Mansuy, Jean-Michel; Abravanel, Florence; Raymond, Stéphanie; Latour, Justine; Jeanne, Nicolas; Ranger, Noémie et al. · Clin Infect Dis · 2023

cross_sectional · Level IV

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Abstract

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.

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