April 16, 2021

Does extreme cold slow down the transmission of Covid-19?


THE CHEKING PROCESS – France faces sub-zero temperatures in many of its regions. Several studies indicate a correlation between temperature and the spread of the virus.

THE QUESTION. -5 ° C in Île-de-France, -6 ° C in Hauts-de-France and Grand-Est, -2 ° C in Normandy … Snow has fallen in recent days in several regions of France, and with it, a cold wave fell over a large part of the territory. In these times of pandemic, the question of the consequences of these harsher temperatures on the circulation of the virus arises.

Covid-19 has been linked to a seasonal epidemic, which preferred the coolness of fall and winter to summer temperatures. But is there a clear correlation between temperature and the spread of the virus? On the contrary, does extreme cold slow down the transmission of Covid-19?

CHECKS. First of all, it seems that the Covid-19 spreads more when it is cold. When the temperature is lower and the air drier: the virus is transmitted more.

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