For epidemiologist Dominique Costagliola, also director of research at Inserm, the increase in the incidence of the coronavirus among young people should encourage policies to tighten the screw.

According to her, it is necessary in particular to return to certain reductions in restrictions which took place on 30 June last.

History seems to repeat itself.

While the Covid-19 had to be (finally) defeated, after multiple restrictions and the rise of vaccination, the figures again seem to deteriorate in France due, in particular, to the appearance of variants, including the now infamous Delta variant.

To the point that some specialists call for the greatest caution.

For epidemiologist Dominique Costagliola, guest on Europe 1 on Saturday, the public authorities must consider "going back on the measures lifted on June 30". 

Put back gauges and insist on aeration

"What we are seeing at the moment is a fairly considerable increase in the incidence among young people, in particular 20-29 year olds, and this in a very large number of departments in mainland France", underlines the one who is also research director at Inserm.

"We must undoubtedly revisit a number of the measures lifted on June 30 in order to hope to return to a calmer zone, until we can better develop vaccination."

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Dominique Costagliola is thinking in particular of the gauges, which "have been lifted in restaurants, cinemas".

"This is probably what you have to start with," she said.

"And I think we have to communicate again about the importance of the mask inside."

Another hobbyhorse, according to the specialist: insisting "on the importance of aeration and the measurement of CO2 to verify that there is a sufficient level of ventilation".

"We vaccinated people at risk less well"

A barrier measure that has so far been neglected in government communications, recalls the epidemiologist.

"Restaurants are necessarily a place where you do not wear a mask, so what is important is ventilation", she underlines, just after having cited festivals as a "possible" place of contamination, even in the open air, since we "will stay a long time next to others without a mask".

Finally, Dominique Costagliola insists on the need to further increase vaccination, especially for people "most at risk", if we want to finally get rid of the coronavirus on a lasting basis.

"We have rather less well vaccinated [this public] if we compare ourselves to all our neighbors," she recalls.