COVID-19: epidemiological update. Weekly report. Week 1. 13 January 2022.

Publié le 14 janvier 2022
Mis à jour le 14 janvier 2022

Key points

Week 1: strong increase in the circulation of SARS-CoV-2 and a rise in new hospital and intensive care admissions, putting the hospital system under significant strain.

  • Metropolitan France:
    • Incidence rate highest among 20-29 year-olds (>5,200/100,000 inhabitants) and 10-19 year olds (>4,500)
    • Incidence rate >2,000 in all regions
    • New hospital and intensive care admissions increasing in most regions
    • Rise in hospital admissions less substantial in this wave, compared to the increase in incidence
    • Stable proportion of 0-17 year olds among patients hospitalised for COVID-19
  • Overseas France:
    • Incidence rate >2,000 in all regions
    • Hospital admission rates very high in French Guiana, Mayotte and Reunion Island.


  • 89% of screened tests showed a profile compatible with the Omicron variant in week 1
  • Omicron accounted for 65% of the interpretable sequences in the week 52 Flash Survey of 27 December 2021


  • Vaccination on 11 January 2022 (Vaccin Covid data):
    • 77.6% of the French population had received a complete primary vaccination series
    • 55.7% of the 18+ age group (representing 66.8% of those eligible) and 76.4% of the 65+ age group (85.5% of those eligible) had received a booster shot
  • Importance of combining measures:
    • Complete vaccination series with a booster at 3 months
    • Compliance with preventive measures including wearing a mask and reducing contacts, along with other precautionary recommendations such as frequent ventilation of enclosed spaces, working from home and adherence to contact tracing