COVID-19: Epidemiological Update for January 20, 2022

Key Points

In Week 2, SARS-CoV-2 transmission remained very high, with a less pronounced increase in the number of cases and continued significant pressure on hospitals.

  • Mainland France:

    • Highest incidence rates among 10- to 19-year-olds (> 5,500 per 100,000 inhabitants) and 30- to 39-year-olds (> 4,200)

    • Testing rates are declining, and the positivity rate remains very high

    • Significant regional disparities in hospitalization rates

  • Overseas territories:

    • Very high incidence rates in Guadeloupe (>4,500) and Réunion (>3,800)

    • High rate of new hospitalizations in French Guiana

Contact tracing

  • 97% of cases are contacted by the Health Insurance Agency on the day of or the day after their identification (via text message in 91% of cases)

  • Among the cases contacted, a decrease in the number of contacts identified per case

Variants

  • 96% of screened tests showed a profile consistent with the Omicron variant in S02

  • Omicron accounted for 80% of interpretable sequences in the Flash S01 survey of January 3, 2022 (preliminary data)

Prevention

  • Vaccination as of January 18, 2022 (Covid Vaccine data):

    • 78.0% of the total population had received a full primary vaccination series

    • 61.2% of those aged 18 and older had received a booster dose (72.2% of eligible individuals) and 78.8% of those aged 65 and older (87.6% of eligible individuals)

  • Importance of combined measures:

    • Complete vaccination schedule with a booster shot as early as three months

    • Adherence to preventive measures, including mask-wearing and contact reduction, as well as other recommended measures such as frequent ventilation of enclosed spaces, teleworking, and participation in contact tracing

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