Thursday , December 9 2021

Expansion of Covid-19: Why restaurants and bars are at risk


A drink at the box office, a plate of the day swallowed at noon, a pint in hand at the dance floor. These are the memories today. How long will it take to live in a world without restaurants, bars and cafes? If the government has to decide next week to ease the trade shutdown, these places in life, a symbol of our cultural identity, may keep the door closed for another few weeks, or until January 15th. less so, according to some media outlets, after the stores reopened. It seems, unfortunately, quite logical that Benjamin Davido Garches (Hauts-de-Seine) is a specialist in infectious diseases. They infect us the most where we don’t wear masks. ”

Several studies have answered “where do you catch the virus the most?” Questions. “And” they all say the same thing, “the doctor notes. The result of the ranking is the highest risk of infection in restaurants, sports clubs, cafes, bars and hotels, and in Chicago alone, 85% of infections occurred in 10% of places frequented by the public.

It’s hard to respect physical distance

The same was seen in another U.S. survey published in September by the Centers for Disease Control and Prevention (CDC). We know that infected people have 2.5 cases more than negative cases to go to a restaurant and almost four times more to go to a bar or cafe. “Apart from eating and drinking with a mask, they are closed places and density is important in bars. As alcohol helps, as the evening progresses, it becomes increasingly difficult to respect physical distances, ”admits epidemiologist Pascal Crépey. Therefore, we spit and infect our neighbor by talking.

Since the beginning of the epidemic, a question has plagued scientists: how do you explain that in certain situations, such as a restaurant, a person catches the virus without being next to the patient? Maybe they crossed paths when paying the bill? The answer is unlikely to satisfy the researcher. “We started to have doubts, the mere assumption of postilions was not enough,” says Pascal Crépey.

Places we stay for a long time

Scientists then think of aerosols, those fine particles that contain the virus, which are emitted when a patient speaks and remain suspended in the air, unlike the apostilles. And they are right! But one detail also raises doubts: diseases that are transmitted by aerosols tend to be much more contagious. In the case of measles or whooping cough, it infects about fifteen people compared to three compared to Covid-19. Finally, it is a Chinese study published in September that will verify this thesis of air transmission. It is reported that one passenger, asymptomatic, has not yet contaminated one-third of the ventilated bus. “Unlike measles, there must be a lot of viral particles in the air to transmit Covid. This explains why most of the described clusters are inside and not outside, ”says Pascal Crépey.

What about other closed places like transportation? “Unlike restaurants and bars, we wear a mask, we talk little and we don’t stop for a long time,” says the epidemiologist, who also specifies that “ventilated terraces can be reopened.” For Benjamin Davido, who is a specialist in infectious diseases, all of this data should help us not to make the same mistakes we had in the spring, especially at this time of year, “suitable for respiratory diseases”. “We don’t have to release it. If we reopen public places where we don’t wear masks, we’ll soon encounter a third wave.”

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