July 2, 2022

Incidence rate, number of tests, Omicron … In Seine-Maritime, several “records” broken

Incidence rate by municipality, over the week of December 17 to 23, 2021, in Seine-Maritime. (© Screenshot / Geodes)

It is a memory, for Seine-Maritime, which we would have done well without. During the week of December 17 to 23, 2021, the incidence rate was measured at 468.2 cases per 100,000 inhabitants on the department, a figure so far never reached since the data are public (first wave excluded, therefore).

444.8 cases per 100,000 inhabitants, this was the previous “record”, measured on November 2, 2020, at the peak of the second wave.

The incidence rate curve in Seine-Maritime.
The Covid-19 incidence rate curve in Seine-Maritime. (© Screenshot / Covidtracker)

No marked increase in hospitalizations for the moment

The dynamic is still less strong than in the whole country, where over the period from December 17 to 23, 2021, this incidence rate was measured at 712.2 cases per 100,000 inhabitants, a record also, and otherwise sharper.

In Seine-Maritime, this staggering increase in the incidence rate was, on December 27, 2021, not accompanied by such a marked increase in hospitalizations. To date, in fact, 300 people were in the hospital in the department for cases of Covid, against for example 800 in April 2021. As for the people in intensive care, they were 42 on December 27, 2021, against more than one hundred in previous waves.

Curve of the number of beds occupied in the hospital for cases of Covid-19.
Curve of the number of beds occupied in the hospital for cases of Covid-19. (© Screenshot / CovidTracker)

We will have to wait ten days to see if the many cases identified in recent days are causing hospital pressure.

Omicron is making progress

In the department, the Omicron variant could be at the origin of the sharp rise in the incidence rate in recent days. Indeed, the Covidtracker site, which aggregates data from Public Health France, has set up a tool to identify Covid tests in which the L452R mutation is absent, a mark of the Omicron variant.

And thus note that Omicron would represent, on December 19, 2021, 22.4% of Covid cases in Seine-Maritime. The next few days could well mark a shift in the department, and said variant will quickly become the majority, like what is happening in Île-de-France.

Curve of the presence of variants in the Seine-Maritime department.
Curve of the presence of variants in the Seine-Maritime department. (© Screenshot / CovidTracker)

The 20-29 year-olds most affected

The age categories most affected by the virus in the Seine-Maritime department on December 25 are 20-29 years old, with an incidence rate of 724 cases per 100,000 inhabitants.

Covid-19 incidence rates by age category in Seine-Maritime.
Covid-19 incidence rates by age category in Seine-Maritime. (© Screenshot / Covidtracker)

A rate that has almost doubled in one week in this age category, which has, it should be said, massively been tested in the light of the Christmas family celebrations. Indeed, all these increases are to be compared to another record, that of the number of tests carried out in the department.

This number has exceeded 12,000 over seven rolling days, where so far it had only slightly exceeded 10,000 when the health pass was put in place.

Curve of the number of Covid-19 screening tests performed over a slippery week in Seine-Maritime.
Curve of the number of Covid-19 screening tests performed over a slippery week in Seine-Maritime. (© Screenshot / Covidtracker)

President Emmanuel Macron will hold by videoconference a health defense council devoted to Covid-19, Monday, December 27, 2021 at 4 p.m., one hour before the Council of Ministers which must in particular adopt the bill establishing the vaccine pass.

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