[Subtitles] With the gradual recovery of some infected people, many people began to pay attention to "Fuyang" and "re-infection".
Why does "Fuyang" appear?
What is the difference between "Fuyang" and "reinfection"?
【Subtitle】Why does "Fuyang" appear?
[Concurrent] Wang Guiqiang, director of the Department of Infectious Diseases, Peking University First Hospital
"Fuyang" should be called re-detection. The actual virus or nucleic acid is still positive, just because of the detection method and sampling method, as well as the intermittent nature of detoxification, which leads to the situation that we are always positive and sometimes negative.
So there are many reasons for "Fuyang".
The first is testing, which may not be collected properly when collecting samples, resulting in false negatives.
Another point is that when the patient is recovering, some fragments of nucleic acid may remain, and the test will also be positive.
【Subtitle】What is the difference between "Fuyang" and "reinfection"?
[Concurrent] Wang Guiqiang, director of the Department of Infectious Diseases, Peking University First Hospital
"Fuyang" is simply not good at all, and it is still in a state of persistent infection this time.
"Re-infection", also called "secondary infection", refers to re-infection with the new coronavirus after a period of time after the infection has recovered, which is often caused by the mutation of the new coronavirus.
Reinfection generally refers to more than three months.
So at present, multiple infections in this area are possible.
We must continue to emphasize personal protection and avoid repeated infections as much as possible.
[Subtitle] Is there a high probability of Fuyang and reinfection?
[Concurrent] Wang Guiqiang, director of the Department of Infectious Diseases, Peking University First Hospital
The probability of Fuyang causing further transmission is extremely low, and there are no special symptoms.
There is not much data on the specific risk of multiple infections, and there are differences among different groups of people.
The re-infection of the underlying diseases of the elderly, the risk of severe illness, and the risk of death, of course, are not necessarily directly (affected) by the new crown, but indirectly, the aggravation of the underlying diseases, etc., the risk is also high.
The general population (re)infected more mildly, more asymptomatic.
Another point is that from the data point of view, the risk of reinfection among people who have been vaccinated is also reduced.
So again, the importance of getting vaccinated is emphasized.
Responsible editor: [Luo Pan]