Imagine: you have symptoms that could make you think of Covid-19 but you decide, despite everything, to go do some shopping at the local supermarket. You cough, you have a little fever, you feel tired, you have aches … but there you have it: there is no more milk for the pancake batter.
Researchers at Aalto University, the University of Helsinki, the Finnish Meteorological Institute and the VTT Technical Research Center of Finland (in Finland) studied how a single person infected with the Sars-Cov-2 coronavirus could infect an entire supermarket. ..
In a supermarket, all it takes is an infected cough
The result, presented in video, is terrifying: Finnish researchers show that the particles and sputum emitted by a simple attack of dry cough can spread quickly between the shelves of the supermarket thanks to the ventilation. In less than a minute, the person infected with the coronavirus is able to transmit the virus to their nearest neighbor … even if they are in the next radius!
Worse : even if the infected person moves, the particles and the postilions emitted during the cough (the diameter of which is less than 15 micrometers), they remain in place, suspended in the air … and can thus land in the airways of other clients. Of course, the virus is also found on all objects touched by the infected person: the shopping cart, products, shelves, etc.
Conclusion of the researchers? If you are sick, if you have symptoms that may make you think of the coronavirus, if you have a sick loved one at home … It is imperative that you stay at home, at the risk of contributing to the spread of the Covid-19 epidemic. Easy as pie !
Source:CSC – IT Center for Science
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