COVID-19: epidemiological update. Weekly report. Week 37. 23 September 2021.

Publié le 24 septembre 2021
Mis à jour le 24 septembre 2021

Key points

In week 37, all the epidemiological indicators continued to improve in metropolitan France. Nevertheless, the situation remained very concerning in French Guiana.

  • Metropolitan France:
    • Improvement in the epidemiological indicators in all regions
  • Overseas France:
    • French Guiana: incidence rate and hospital indicators high and on the rise
    • Martinique and Guadeloupe: incidence rate and hospital indicators on the decline


  • Delta variant identified in more than 99% of interpretable sequenced samples in Flash Surveys from 24 and 31 August 2021

Contact tracing

  • Slight increase in the average number of contacts per case:
    • Continued decline in the number of cases not reporting any contacts
    • Rise in the number of cases reporting more than five contacts


  • Vaccination coverage on 21 September: 74.5% with at least one dose and 71.9% fully vaccinated
  • CoviPrev Survey from 31 August to 7 September:
    • Increased anxiety and sleep problems compared to the previous wave
  • Importance of combining different measures: vaccination in addition to contact tracing and preventive measures, especially in the current context marked by a lower adherence to preventive measures