COVID-19: epidemiological update. Weekly report. Week 43. 4 November 2021.

Publié le 5 novembre 2021
Mis à jour le 5 novembre 2021

Key points

In week 43, the resumption of the pandemic was confirmed with the continued increase in the circulation of SARS-CoV-2 in metropolitan France. 

  • Metropolitan France:
    • Incidence rate above 50/100,000 inhabitants among 10-79 year-olds
    • Incidence rate above 50/100,000 inhabitants in 58 departments 
    • R number >1, reflecting the growth of the epidemic 
    • Strong decline in the screening rate among children under 10 years due to the school holidays 
    • Rate of new hospital and intensive care admissions: disparate evolution depending on the region 
  • Overseas France:
    • French Guiana: incidence rate still falling


  • Delta variant identified in 100% of sequenced samples in Flash Surveys on 5 and 12 October 2021

Contact tracing

  • Higher number of cases but stable number of contacts per case
  • Increase in the average age of cases and contacts since week 37, calling for greater vigilance and the administration of the booster dose to the eligible populations


  • Vaccination on 2 November 2021 (Vaccin Covid data):
    • 76.4% of the French population had received at least one vaccine dose, and 74.6% were fully vaccinated 
    • 19.8% of people aged 65 years and older had received a booster dose 
  • Importance of combining measures: vaccination, including the booster for the population over 65 years, adherence to contact tracing, and respect of preventive measures