The very rapid dissemination of the new variant, the week of December 27, 2021 to 2 January, resulted in a clear increase in the circulation of SARS-COV-2, according to Public Health France. The hospital peak is expected between mid and end of January.
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From December 27, 2021 to 2 January, 17.1% of CVIV-19 tests were positive. “A level never reached since the beginning of the pandemic”, notes Nicolas Methy, public health epidemiologist France (SPF). Nearly 2% of the entire French population has been positive tested. The average incidence rate, more than doubled compared to the previous week (+ 129%), climbing to 1,908 cases per 100,000 inhabitants.
These are three of the striking observations of the epidemiological point of SPF drawn up on January 6th. The average incidence, this week (week 52), has been more than 168,000 new cases a day. An underestimated figure, recognizes SPF, because of a traffic jam on the tests. Monday, January 3, 409 370 people were tested positive, according to the SI-DEP platform, which brings together the data dating back to laboratories and caregivers.
“This wave of unpublished magnitude concerns all Europe, reminds Antoine Flahault, director of the Global Health Institute, at the University of Geneva. No influenza epidemic has never reached such a level of contamination. “
In metropolitan France, the incidence rate reached 3 036 in Ile-de-France (+ 115%), 2,444 in Corsica (+ 135%) and 2 072 in Auvergne-Rhône-Alpes (+ 106%) . In addition, it was 281 at the meeting (+ 92%), 1,218 in Guadeloupe (+ 486%) and 870 in Mayotte (+ 664%).
All age classes affected
All age classes are affected. The maximum incidence rate was 20-29, with 3,606 cases per 100,000 inhabitants, followed by 30-39 years, with 2,905 cases. In 10-19 years old and 40-49, this rate exceeded 2,000 cases per 100,000 population. The most marked increases touched the 80-89 years (+ 212%, with 622 cases per 100,000 population) and 70-79 years (+ 207%, with 771 cases). “In the 70-89 year olds, the incidence has more than tripled compared to the previous week”, notes Nicolas Methy.
On week 52, the number of new hospitalizations increased (+ 18%), and that in almost all regions. As for critical care admissions, they remained stable (- 3%). Can we rejoice with this last stagnation? “It’s still early, relieves Mircea Sofonea, epidemiologist at the University of Montpellier. The risk is that the particularly intense level of circulation observed among the 20-39 year olds never end up earn the younger and older circles,” says -T he. It is, in fact, what we start to observe. But “Omicron’s hospital impact can only be quantified in the coming weeks,” adds the epidemiologist. The number of deaths (1,275) increased by 6%.
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