National Health and Health Commission: there is no evidence that the new coronavirus is transmitted through aerosols

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 National Health and Health Commission: there is no evidence that the new coronavirus is transmitted through aerosols


The main route of transmission is still respiratory droplets transmission and contact transmission

What is the main route of transmission of the new coronavirus? @Healthy China said that at present, the main route of transmission of the new coronavirus is respiratory droplets transmission and contact transmission, while aerosol and fecal oral transmission remain to be further clarified. According to the epidemiological investigation, the cases can be traced to the cases that have close contact with the confirmed cases.

Aerosol transmission refers to the core composed of proteins and pathogens left after the droplets lose water in the process of air suspension, which can float to the distance in the form of aerosols and cause long-distance transmission. At present, there is no evidence that the new coronavirus is transmitted through aerosols.

Are there any new coronaviruses in the air? Will not float in the air for a long time

According to @ Health China, the new coronavirus can be transmitted through respiratory droplets. However, the spread distance of the droplets is very short and they will not float in the air for a long time. From this point of view, in the daily ventilation environment, there is generally no new coronavirus in the air. Therefore, it is suggested to open windows at least twice a day for ventilation, which is an effective measure to reduce the risk of infection, but we should be reminded to keep warm.

So can wearing a mask effectively prevent the spread of aerosols? At present, the new crown pneumonia is mainly transmitted by droplets and contact. In some special conditions, aerosol transmission may occur, for example, in professional medical operations such as clinical endotracheal intubation. If it is in the normal clinical care and general working and living conditions, it is enough to protect the general public without infection to take the correct protective measures of wearing masks.

Does flushing toilet produce aerosol? Will the aerosol in the elevator wait for me?

The national health and Health Commission has previously reported that a new type of coronavirus has been detected in the feces of confirmed patients. Will flushing toilets produce aerosols? Experts remind that there will be virus in the feces, and the water flow for flushing the toilet will also produce aerosols. It is recommended to cover the toilet to prevent the spread of aerosols. After flushing the toilet, you can also wipe the toilet cover with disinfectant.

Experts dont think its a big risk that sewers and toilets cause the virus to spread upstairs and downstairs. Li Xiaoning, chief physician of internal medicine of Central South Hospital of Wuhan University, suggested that when no one used the sewer every night, 84 disinfectant tablets or 84 disinfectant solution could be put into the sewer or toilet. Note that if it was metal, it would be corrosive. If it was PVC pipe, there would be no problem.

In addition, the elevator is considered to be a high-risk area. Will a person in front leave a virus aerosol and be inhaled by a person in the back?

Xu LVYE, head of the infectious diseases expert group of Changjiang Shipping general hospital, believes that there is such a possibility in theory, so the previously recommended preventive measures are all effective, reducing going out, not meeting, and wearing tight masks when going out is necessary. It is recommended that you do not touch the elevator space. When you press the elevator key, you can use a paper towel to separate one floor and press it again. Wash your hands immediately after you go home.

Health and epidemic prevention experts stressed that the main routes of transmission of new coronavirus infection pneumonia that can be determined at present are direct transmission, aerosol transmission and contact transmission.