DecryptionWeight of the asymptomatic in the contagion, infectivity of the children, seasonality of the virus, therapeutic tracks… many uncertainties remain, at the moment when the main measure of containment of Covid-19 is lifted.
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The period of deconfinement begins in France, while a certain number of uncertainties remain on the behavior of the new coronavirus and our capacity to stop the epidemic outside a very constrained framework of reduction of the interindividual contacts, factors of contamination . For four months, the scientific machine has been running at full speed to understand the specifics of this pandemic, but it is far from having unraveled all its secrets. At a time when we are about to lower our guard against SARS-CoV-2, a review of outstanding scientific questions.
Who were the containment contaminates?
According to figures from the Directorate General of Health, 8,674 new positive tests for SARS-CoV-2 were officially registered between 1er and on May 9, in France. Despite the barrier gestures, despite the social distancing, despite the confinement, there are still, in reality, 3,000 to 4,000 new infections each day, according to epidemiologist Daniel Lévy-Bruhl, head of the respiratory infections unit at Public Health France (SPF). “It’s significantly less than a month ago, but it’s still a lot, underlines Anne-Claude Crémieux, professor of infectious diseases at Saint-Louis hospital in Paris. So we will deconfinate with contamination chains still active and very rough knowledge of what’s going on. We do not have an inventory of all nursing homes, or in all hospitals, and we do not know the conditions of infection of new infected, while this period should have allowed us to properly analyze all these points. There has been no real public health strategy to achieve deconfinement. “
The finding is severe. It is true that the infectious disease specialist has been alerting for a month already, through press releases from the Academy of Medicine, of which she is a member, or through press interviews. “When we saw that after three weeks of confinement the infection levels remained very high, we demanded a change in strategy. “ Like breaking family chains in particular by developing patient care in medical hotels. Various international studies have shown, it is true, the role of home contamination. As early as February, the first Chinese studies conducted on clusters of more than three cases concluded that 80% were familial. Another study, carried out in Hong Kong on 318 patient groups, found the same result. Far behind were transportation.
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