COVID-19: epidemiological update. Weekly report. Week 16. 28 April 2022.

Publié le 29 avril 2022
Mis à jour le 29 avril 2022

Key points 

In week 16, circulation of SARS-CoV-2 continued to decline in France, with a drop in all virological indicators.

  • Metropolitan France:
    • Drop in the indicators among all age groups, particularlythe under-20s
    • Positivity and incidence rates still high in all regions
    • Downward trend in new hospital admissions, but still at a high level
  • Overseas France:
    • Incidence and hospitalisation rates still very highin Reunion Island


  • The Omicron BA.2 sub-lineage accounted for 99% of interpretable sequences in the Flash Survey for week 15 (11 April)


  • CoviPrev Survey wave 33 (8-15 April 2022)
    • Decline in the regular use of precautionary measures,particularly wearing masks (42% vs. 71% in February)
    • 68% of respondents who had already received the first booster shot were in favour of the second shot (77% among people aged 60 and over)
  • Vaccination on 25 April 2022 (Vaccin Covid data):
    • 83.7% of people aged 65+ had received a completeprimary vaccination series and a booster shot
    • 3.3% of 60-79 year-olds had received their second booster shot (32.0% of those eligible)
    • 13.2% of people aged 80+ had received their second booster shot (19.9% of those eligible)
  • Protection against the SARS-CoV-2 and flu viruses in high circulation:
    • Importance of self-isolating in the event of symptoms or a positive test for COVID-19
    • The need to continue taking individual precautions