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Abdul Ahad
Jul 17, 2022
In General Discussion
I am often asked, "They are already in the anti-epidemic hotel, how can I be infected?" Especially if I don't see the "connection between people", everyone lives in the room, and no one will come out to the corridor? In fact, similar situations have been repeated in epidemic prevention hotels all over the world. The Hong Kong research team discovered the spread of Omicron virus in epidemic prevention hotels by the end of 2021, which has been published in the international journal "Emerging Infections Disease" of the US Centers for Disease Control and Prevention (CDC) to warn the world. The epidemic survey in the study found that neither of the infected patients had contact with each other, nor did they leave the door without permission. The only moment when the door opens is: Open the door for food Open the door for PCR testing So Hong Kong researchers believe that this is most likely the spread of "aerosols" in the corridor. How do aerosols spread in hallways? According to a Hong Kong study published in the international journal "The Lancet Regional Health - Western Pacific" in January 2022, it is assumed that the index case of infection enters the hotel, and all items are disinfected in compliance with regulations, inside the room, outside the corridor All are disinfected and doors and windows are closed. Under such circumstances, you can imagine that the index case of the infection wedding photo retouching services lived in the room for more than 10 days, and the items in it still have air, which is full of aerosol concentrations. At this time, the most opportunity for tenants to have direct contact with the outside world is to “open the door to get food”. Although the tenants did not contact each other, nor did they leave the door privately, they just opened the door and communicated in the corridor. Time and time again, day by day, in such a closed corridor, aerosol condensation began to occur. The study authors' experiments found: When the door suddenly opened: In just a few seconds, the high-concentration aerosol that had condensed in the room, when the door opened instantly, flowed into the corridor in large quantities and quickly, and then gradually returned to the room. When the door is fully open: the airflow near the upper two-thirds of the door, mainly flows into the room. In addition, the airflow near the lower third of the door, along with the aerosol airflow in the room, also began to flow out to the corridor, and then the aerosol stayed in the corridor. When the door is kept slightly open: at this time, the highly condensed aerosol is in the corridor and can still flow rapidly into the room from the lower third of the door. In this way, aerosols containing viruses may condense in your room every day, time and time again, and then you will remove the mask when you drink water, brush your teeth, take a bath, and eat, and the chance of being indirectly infected by the index case increases.
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