Source: Interface News
Author: Pei Honggang
Recently, it is said that this pneumonia can be transmitted through gas solution. It is also written in the latest version of the diagnosis and treatment guide, so many people are worried that they feel that they will spread through the air, do they need to worry about opening the window and walking on the road.
What is air -soluble gum?
The solid or liquid particles that are suspended in the air are called gas -soluble.
The dust, fog, haze, and dust floating in the air are air -soluble gels.The droplets produced by sneezing and cough are large and small, and the large ones quickly fall to the ground. The small ones can be suspended in the air for a while. When they are suspended in the air, they are air -soluble.When doing some medical operations, such as tracheal intubation, bronchoscopy, and dental operation, air -soluble oscillating will also be produced.
Is the transmission of air -soluble glue equal to air communication?
The droplets of sneezing, the air -soluble gum produced in the medical operation. If it contains a virus, it falls on the lips, noses, eyes, or being inhaled into the respiratory tract, which may cause infection.
That gas solution can cause infection, does this virus can be spread air?No, droplets and air communication are a unique concept of infectious diseases, but air -soluble gel propagation is not.
The spread of droplets refers to the spread of droplets produced through cough, sneezing, and speaking.The drift particles will be relatively large, and the scope of spreading and the time to stay in the air is limited, which also determines that the range of infection of this way of communication is limited, mainly within 2 meters, so the droplet transmission is mainly accumulated and the patient's close distance is close.People who are in contact.
The spread of air is spread through the droplet core or dust formed by the remaining protein and pathogen after the air is lost in the air. Because the particles are smaller, it stays longer in the air and can flutter farther.The stronger the contagiousness.
When a patient is discharged from the pathogen through cough or sneezing, even if the patient walks away, the particles floating in the air can also be infected.
Therefore, droplets and air transmission are actually transmitted through the medium of gas solution. The big difference is whether they need to contact patients closely, such as face -to -face, or in the same room to complete the infection.
Is a pathogenesis transmitting through droplets or transmission of air, which is mainly determined by its survival and pathogenic ability in the air.It takes a long time to survive in vitro and has strong pathogenic ability, such as tuberculosis, chickenpox, measles, etc. can be spread through air.
How is the new coronary virus spread?
This new type of coronary virus is a newly discovered virus. We do not fully understand it. The judgment of its communication method is mainly based on other coronary viruses, especially those who are closer, which leads to SARS and Middle East respiratory syndrome.The coronary virus is judged, and the other is analyzed according to the dissemination of the existing cases.
Both SARS and Middle East respiratory syndrome are mainly droplets. This new type of coronary virus is mainly transmitted by close contact, such as family or hospitals.Propaganda, through the virus that falls on the object to the hand, and then the infection may be caused, it may also be, but it is not the main way of communication.
In the diagnosis and treatment guidelines of the National Health and Health Commission, the previous version is written by the air spread of the respiratory tract, and it can also be spread through contact. In the latest fifth edition, the communication channels such as gas solution and digestive tract are still clear.
The spread of the digestive tract is more based on the consideration of the detection of virus nucleic acid detection in the stool before, and the gas -solid oscillated here alone should be a warning of the risk of infection in the infection in the medical operation of the medical staff, because this is itself for itself for itself.The diagnosis and treatment guidelines seen by medical staff, Li Tai Sheng, a respiratory doctor at Beijing Union Hospital, also said [1].
Therefore, in general, air -soluble gel propagation, droplet transmission and air communication are not belonging to the same classification concept. The essence of droplets and air communication belong to air -soluble transmission.There is a qi word that thinks the same. What we need to worry about is people who are closely exposed to close contact, not the virus of the virus in the imagination.
