As early as February, there were news reports that someone had been infected with the COVID-19 virus for 15 seconds without wearing a mask. Zhong Nanshan also said that COVID-19 is more contagious than SARS. And experiments have proved that it spreads very quickly, and it can already be spread throughout the supermarket aisle in 60 seconds.
Because it belongs to a confined space, when someone inside is infected with COVID-19 and starts to cough, it can spread to one channel of the supermarket in 60 seconds, and can spread to other channels after 2 minutes. This has turned supermarket employees into susceptible populations, with data showing that more than 10 people are infected with viruses in supermarkets.
A recent research by the Finnish research team found that the COVID-19 virus spreads more quickly in supermarkets and has longer vitality. This has greatly increased the chances of people visiting the supermarket infected with the virus. In order to better study viruses, four research institutions including Aalto University conducted simulation experiments on virus propagation.
It turned out that COVID-19 patients coughed in the supermarket, the virus will spread quickly, only 60 seconds to pass through the aisle and shelves, spread to other places within 2 minutes, and then stay in the air for 6 minutes. Although the concentration decreased after 6 minutes, there was still a small amount of virus. The experimenter reached the conclusion that the COVID-19 virus can spread from a long distance, spread faster in the supermarket, and stay in the air for a few minutes without disappearing. It is recommended that the general public do not go to the supermarket with many people to shop, if they must go It also needs to be as short as possible.
You must know that a woman in Ningbo was infected with the virus in January, and she was found out on March 1. Later, she found that she often went to the supermarket to buy things. She also appeared in a supermarket with Ms. Chen who had been diagnosed. Both of them went to the supermarket. Hours, and then there is a difference of 9 minutes before and after payment. Because it is in the supermarket on the negative floor, the ventilation is poor, so the longer you shop in such a supermarket, the more likely you are infected with the virus.
In response to this problem, the CDC advises the public that first of all, they should take less buses and subways, and go out on foot or drive as much as possible. Secondly, go to the supermarket to wear a mask, it is best to wear disposable gloves, and people 1 meters away. Also, it is best to pay with a mobile phone to reduce cash usage. Don't stay in the supermarket for a long time, leave immediately after buying good things.
Finally, wash your hands immediately after returning home, and sterilize the articles you carry with alcohol. The purchased goods can also be sterilized with special disinfection water.
Now, although the epidemic has been brought under control, we still cannot take it lightly. Masks must be worn. Try not to stay in a supermarket with as many people as possible for a long time, otherwise there is a great risk of infection. The CDC ’s recommendations must still be kept in mind and strictly enforced to protect their own safety.
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