COVID-19: epidemiological update. Weekly report. Week 48. 9 December 2021.

Publié le 10 décembre 2021
Mis à jour le 10 décembre 2021

Key points

In week 48, the intense circulation of SARS-CoV-2 continued to accelerate in metropolitan France, with sharp rises in new hospital and intensive care admissions. 

  • Metropolitan France:
    • Incidence rate higher than the peaks of the third and fourth waves 
    • Incidence rate above 600 cases per 100,000 inhabitants among 30-39 year-olds and 900 among 6-10 year-olds 
    • New hospital and intensive care admissions increasing in almost all regions 
  • Overseas France:
    • Reunion Island: rising incidence rate and new hospital admissions
    • Martinique: active circulation of the virus and increase in hospital admissions

Variants

  • Delta variant identified in more than 99% of sequenced samples in the Flash Survey from week 46 (15-17 November)
  • 59 confirmed cases of Omicron variant in France as of 4 pm on 9 December
  • Moderate circulation of the B.1.640 variant across the country

Contact tracing

  • Decrease in the proportion of cases being investigated (in week 47) due to the high incidence
  • Fewer new cases linked to known transmission chains

Prevention

  • Vaccination on 7 December 2021 (Vaccin Covid data):
    • 77.7% of the French population had received at least one vaccine dose, and 76.1% were fully vaccinated
    • 51.4% of people aged 65 years and older had received a booster shot, representing 76.4% of the eligible population in this age group 
  • Importance of combining measures: vaccine and booster shots, adherence to contact tracing, and respect of preventive measures, notably by reducing contacts and working from home