What is the molecular evolution of SARS-CoV-2 viruses circulating in the country? Results of Flash Survey #27

Published on 10 November 2021

Consolidated results of Flash Survey #27 (October 5, 2021)

1,529 samples from 15 regions/territories in mainland France and overseas territories (32% of the 4,781 positive cases reported today), including 1,361 with an interpretable result.

The following variants of concern1 were detected among the samples:

In mainland France: 99.9% of variants 21A/I/J (Delta, B.1.617.2, AY*, first identified in India)
In Guadeloupe: Sample size too small to produce interpretable results; however, Delta accounts for all 5 sequenced samples with an interpretable result.
In Martinique: Sample size too small to produce interpretable results; however, Delta accounts for all 19 sequenced samples with an interpretable result.
In French Guiana: Did not participate in Flash Survey #27
In Réunion: Sample size too small to produce interpretable results; however, Delta accounts for all 12 sequenced samples with an interpretable result.
In Mayotte: No participation in Flash Survey #27