Analysing 9,030 variant-specific tests performed on SARS-CoV-2 positive samples collected in France between 31 May and 21 June 2021 reveals a rapid growth of the δ variant in 3 French regions. The next weeks will prove decisive but the magnitude of the estimated transmission advantages could represent a major challenge for public health authorities.
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Alizon et al. (2021) studied this question.
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