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Coronavirus – All news: Impressive graphs showing the spread of the coronavirus indoors, such as homes, shops and schools, and the reduction of risk when security measures are observed.
Using striking graphics, based on a model developed by the chemist José Luis Jiménez of the University of Colorado, the “The countryHe explained their modes of transmission. coronavirus indoors.
Next to, It also explains how the risk of spreading the virus is reduced when security measures are followed., the obvious difference being for people who get infected when no action is taken.
In the homage of the authoritarian Spanish newspaper, the forms of its dissemination are first analyzed coronavirus generally achieved by the scientific community. The first refers to the droplets expelled from the oral cavity when speaking or coughing, the second refers to contaminated surfaces and the third to aerosols, that is, the inhalation of the particles by a coronavirus carrier.
El País’s analysis houses examples of closed spaces such as a living room, a bar and schools. In all the scenarios, the possibilities of the coronavirus being transmitted when security measures are not observed and the space is not ventilated and how much they are reduced when the measures and adequate ventilation of the space are complied with.
Scenario 1: The living room of the house
Six people are in a room, and one of them tests positive for the coronavirus. According to Spain, 31% of infections have been reported in this way among family and friends.
After four hours, if no one wears a mask and there is no ventilation, all five healthy people in the room will get sick.
If all five healthy people wear a mask at the same time, all four are at higher risk of getting sick.
If everyone wears a mask, there is ventilation of the space and the common presence in the space is reduced by half, then only one in five healthy people is at risk of contracting the coronavirus disease.
Scenario 2: at the bar
In Spain it has been estimated that a bar can be responsible for up to 27 infections, starting the outbreak at 7:00 p.m.
In this scenario, it is estimated that the capacity of the store is reduced to 50%, there are 15 customers, three employees and the shop windows are closed. In six hours, without security measures, 14 of the clients would have been infected.
If the mask is worn continuously, the number of cases will be reduced to eight. If with continued use of the mask there is adequate ventilation and a shorter stay indoors, then the number of possible cases will be reduced to one person!
Scenario 3: at school
In the hypothetical scenario of “El País”, the teacher is perceived as a “zero patient”. In this case, the risk of transmitting the coronavirus is greater since the teacher has to speak more, and many times louder to be heard in the room.
In two hours, in a room of 24 students with a teacher positive for the virus, without masks, there is a possibility that 12 of the students will be infected.
If everyone wears a mask at the same time, the potential number of students at risk of becoming infected drops to just five.
By ventilating the room and reducing the stay by one hour, there is a risk of infection for only one of the 24 students …
Thus, the need to comply with measures against its dissemination is easily understood. coronavirus. Especially for the use of a mask, indoors where you live for many countries, it becomes clear that it is necessary to reduce the chances of spreading the virus.
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