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Covid-19: “We are not at all on the end of the pandemic”
The Swiss epidemiologist and director of the Geneva Institute of Global Health, Antoine Flahault, analyzes for Capital the peak of the ninth wave of Covid-19, which France has just passed.
By Caroline Robin
Health journalist
Published on 21/12/2022 at 4:26 p.m. & Updated 22/12/2022 at 7:27 am
Can we really be happy to have reached the epidemic peak? Admittedly, the very first was life-saving and gave hope of emerging from particularly drastic confinement at the start of the Covid-19 pandemic. But things are different today. In particular because there are nine epidemic waves… including five, in 2022 alone . And that barrier gestures are no longer the norm within the population, despite the appeals to the French launched by the government in the midst of the triple epidemic of Covid, influenza and bronchiolitis. A report which, for the Swiss epidemiologist and director of the Geneva Institute of Global Health, Antoine Flahault, does not make it possible to predict the end of the Covid-19 pandemic. Maintenance.
Capital: That's it, France has crossed the peak of the ninth wave. But after so many epidemic waves, we know the song. Should we fear a rebound very quickly after Christmas?
Antoine Flahault : Indeed, we have seen an acceleration of the pandemic over the past year. In 2022, there were five waves in total, compared to only two in 2020 and 2021. Almost everyone was infected with Omicron. We are clearly not at all on the end of the pandemic, but rather on a very strong acceleration. We hardly see any respite, or even between two epidemic waves as in the summer of 2020. We no longer see mortality relapse. We are increasingly in a permanent high transmission plateau.
Capital: Is it the fault of a lesser application of barrier gestures? The government is content to recommend wearing a mask without making it compulsory...
Antoine Flahault : Yes, that completely explains the high level of contamination. We could live with it if the level of mortality was at the level of the flu . However, the mortality linked to Covid-19 is 4 to 5 times higher than for the flu. We are not taking all the measures that we could implement today to try to remedy this.
Capital: The Committee for monitoring and anticipating health risks (Covars) does not give a clear opinion on the wearing of a mask. Do you think it should be made compulsory?
Antoine Flahault: There are studies that show that in the United States, the obligation to wear a mask is much more effective than simply recommending it. In any case, in the West, the recommendation of the mask is not sufficient. Or, we could recommend the FFP2 mask to fragile people who are the only ones to wear the mask in transport and closed places. At least it would protect them better. It is a pity that the French health authorities are not very clear on this subject. As for the surgical mask, it is altruistic. He protects others above all else. So it is only effective if we all wear it. But to impose it, it would be necessary to define a numerical threshold, beyond which the mask is imposed in closed places.
Capital: From which indicator? The alert threshold for the incidence rate formerly set at 50 cases per 100,000 seems very far away...
Antoine Flahault: It's to be discussed with the scientists. We should perhaps not define the obligation to wear a mask on the basis of the level of contamination because this data depends on the number of tests carried out. We could possibly start from the level of hospitalizations or admissions to critical care. For example, from 1,500 people hospitalized for Covid, the mask is imposed.
In any case, a rule is missing which imposes the mask in an enclosed place where the CO2 sensor displays more than 600 ppm (part per million, editor's note) . If the rate is below 600 ppm indoors, the mask is less useful.
Capital: Precisely, what about air quality among health prevention measures? The pandemic has highlighted this problem, but we seem to be treading water.
Antoine Flahault:I like to take the example of water quality. Historically, the dangers of drinking water date back to the mid-19th century. John Snow discovered the reasons for the cholera epidemics in London, it was the fact of drinking the water of the Thames. The epidemic stopped after his demonstration. But it took 50 years for the public authorities to bring drinking water to homes. You don't realize it, but you flush toilets with water as pure as that of Evian. Thus, more risk of cholera. And I think we have the same problem with Covid-19. We breathe air polluted by viruses exhaled by others. And when we go to a closed place, we breathe an air whose quality we do not know. I think it will take some time between awareness and the moment when we proceed with the infrastructure works. Be that as it may, a more ambitious vision of buildings is needed.
https://www.capital.fr/economie-poli...ndemie-1455506
Covid-19: “We are not at all on the end of the pandemic”
The Swiss epidemiologist and director of the Geneva Institute of Global Health, Antoine Flahault, analyzes for Capital the peak of the ninth wave of Covid-19, which France has just passed.
By Caroline Robin
Health journalist
Published on 21/12/2022 at 4:26 p.m. & Updated 22/12/2022 at 7:27 am
Can we really be happy to have reached the epidemic peak? Admittedly, the very first was life-saving and gave hope of emerging from particularly drastic confinement at the start of the Covid-19 pandemic. But things are different today. In particular because there are nine epidemic waves… including five, in 2022 alone . And that barrier gestures are no longer the norm within the population, despite the appeals to the French launched by the government in the midst of the triple epidemic of Covid, influenza and bronchiolitis. A report which, for the Swiss epidemiologist and director of the Geneva Institute of Global Health, Antoine Flahault, does not make it possible to predict the end of the Covid-19 pandemic. Maintenance.
Capital: That's it, France has crossed the peak of the ninth wave. But after so many epidemic waves, we know the song. Should we fear a rebound very quickly after Christmas?
Antoine Flahault : Indeed, we have seen an acceleration of the pandemic over the past year. In 2022, there were five waves in total, compared to only two in 2020 and 2021. Almost everyone was infected with Omicron. We are clearly not at all on the end of the pandemic, but rather on a very strong acceleration. We hardly see any respite, or even between two epidemic waves as in the summer of 2020. We no longer see mortality relapse. We are increasingly in a permanent high transmission plateau.
Capital: Is it the fault of a lesser application of barrier gestures? The government is content to recommend wearing a mask without making it compulsory...
Antoine Flahault : Yes, that completely explains the high level of contamination. We could live with it if the level of mortality was at the level of the flu . However, the mortality linked to Covid-19 is 4 to 5 times higher than for the flu. We are not taking all the measures that we could implement today to try to remedy this.
Capital: The Committee for monitoring and anticipating health risks (Covars) does not give a clear opinion on the wearing of a mask. Do you think it should be made compulsory?
Antoine Flahault: There are studies that show that in the United States, the obligation to wear a mask is much more effective than simply recommending it. In any case, in the West, the recommendation of the mask is not sufficient. Or, we could recommend the FFP2 mask to fragile people who are the only ones to wear the mask in transport and closed places. At least it would protect them better. It is a pity that the French health authorities are not very clear on this subject. As for the surgical mask, it is altruistic. He protects others above all else. So it is only effective if we all wear it. But to impose it, it would be necessary to define a numerical threshold, beyond which the mask is imposed in closed places.
Capital: From which indicator? The alert threshold for the incidence rate formerly set at 50 cases per 100,000 seems very far away...
Antoine Flahault: It's to be discussed with the scientists. We should perhaps not define the obligation to wear a mask on the basis of the level of contamination because this data depends on the number of tests carried out. We could possibly start from the level of hospitalizations or admissions to critical care. For example, from 1,500 people hospitalized for Covid, the mask is imposed.
In any case, a rule is missing which imposes the mask in an enclosed place where the CO2 sensor displays more than 600 ppm (part per million, editor's note) . If the rate is below 600 ppm indoors, the mask is less useful.
Capital: Precisely, what about air quality among health prevention measures? The pandemic has highlighted this problem, but we seem to be treading water.
Antoine Flahault:I like to take the example of water quality. Historically, the dangers of drinking water date back to the mid-19th century. John Snow discovered the reasons for the cholera epidemics in London, it was the fact of drinking the water of the Thames. The epidemic stopped after his demonstration. But it took 50 years for the public authorities to bring drinking water to homes. You don't realize it, but you flush toilets with water as pure as that of Evian. Thus, more risk of cholera. And I think we have the same problem with Covid-19. We breathe air polluted by viruses exhaled by others. And when we go to a closed place, we breathe an air whose quality we do not know. I think it will take some time between awareness and the moment when we proceed with the infrastructure works. Be that as it may, a more ambitious vision of buildings is needed.
https://www.capital.fr/economie-poli...ndemie-1455506