While it currently only represents 9 to 10% of contaminations in France, the Delta variant of Covid-19 is gaining ground. But a question arises: will the rise in temperatures help us have a quieter summer? Last year, the arrival of sunny days had actually helped to reduce the epidemic, but specialists however call not to relax.
Studies have shown that last summer transmission was reduced by about 50% compared to the previous winter. This is due to both rising temperatures and behavior: people live more outdoors and with windows open, which reduces the risk of contamination.
“Vaccination is not everything”
But this year, with the rise of the Delta variant, Professor Arnaud Fontanet, head of the epidemiology of emerging diseases unit at the Pasteur Institute, warns us against excessive optimism. “Even if we expect that there will be a decrease in transmission linked to the summer condition, that will not be enough in itself, compared to viruses even more transmissible than those we had before”, warns -he.
“It is true that vaccination will help, but it is not everything,” he said again. And to conclude: “Do not consider that we can do anything on our side in terms of individual behavior.”
Don’t relax too much
Be careful, therefore, to the too rapid release of barrier gestures in the non-vaccinated. In a vaccinated population, it’s different: not only does the risk of hospitalization decrease, but the risk of being infected and transmitting the virus is also reduced by at least 50% … have received both doses.
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