What is the molecular evolution of SARS-CoV-2 viruses circulating in the region? Results of Flash Survey #19

Consolidated results of Flash Survey #19 (August 10, 2021)

5,373 samples from 17 regions/territories in mainland France and overseas territories (19% of the 28,609 positive cases reported today), including 4,697 with an interpretable result.

The following variants of concern1 were detected among the samples:

  • In mainland France:

    • 99.0% of 21A variants (Delta, B.1.617.2, first identified in India)

    • 0.6% of 20I variants (Alpha, V1, B.1.1.7, first identified in the United Kingdom)

    • < 0.1% of 20J variants (Gamma, V3, P.1, first identified in Brazil)

    • < 0.1% of 20I/484K variants (B.1.1.7 + E484K, first identified in the United Kingdom)

    • < 0.1% of 20H variants (Beta, V2, B.1.351, first identified in South Africa)

  • In the Overseas Territories:

    • In Guadeloupe: 92.9% Delta variants and 7.1% Alpha variants

    • In Martinique: 79.6% Delta variants and 20.4% Alpha variants

    • In French Guiana: Sample sizes too small to produce interpretable results; however, Delta accounts for all 8 sequenced samples with interpretable results.

    • In Réunion: 79.7% Delta variants, 18.0% Beta variants, 2.3% Alpha variants

    • In Mayotte: No participation in Flash Survey #19 (very low number of positive cases).

Flash Surveys #

Learn more about the Flash surveys and view all results from the different survey waves

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