Why is there an increase in asymptomatic infections?

The increase in the number of asymptomatic infections isBecause with the continuous improvement of nucleic acid testing capacity and the continuous expansion of the scope, many infected people in the early stage of infection, that is, in the incubation period, have been detected through testingThese are mostly positive test results that are in the incubation period and have not yet developed symptoms.

During the post-medical observation period, some infected people will develop symptoms one after another, which will be revised to confirmed cases. Therefore, everyone feels that the increase in asymptomatic infections is actually due to the improvement of prevention and control measures, which has played a positive role in epidemic control. It can be said that the announcement of asymptomatic cases now is a hidden "thunder".

As long as they are identified, the risk of infection can be avoided.

This can show two problems: one is that the virulence of the virus is not strong, so many people are asymptomatic infections with no obvious clinical symptoms. Second, it is very contagious, whether it is human-to-human transmission or object-to-human transmission, the survival ability of the virus is very strong, and the infectivity is also very strong.

The large number and high proportion of asymptomatic infections are the obvious characteristics of this round of the epidemic. Zhang Boli explained that this feature is not only related to the virus itself, but also related to timely screening, early detection of infection, and more closely related to vaccination.

Data map Xinhua News Agency photo by Zhao Zishuo.

Most of the people are asymptomatic because of these three points.

First of all, it is related to the characteristics of the Omicron variant itself. "The new coronavirus variant is more contagious, and its virulence is relatively weak. Zhang Boli explained that the clinical manifestation of the weakening of the virus virulence is that the clinical symptoms will be milder, and many infected people do not show clinical symptoms for a short time after infection.

The case fatality analysis of the Omicron variant and the Delta variant from other countries shows that the case fatality rate of the Omicron variant decreased during the epidemic, indicating that the Omicron variant is not as pathogenic as other variants.

Still, asymptomatic people should not be taken lightly. Zhang Boli reminded: First, although it is asymptomatic, it is still infectious and more insidious; In addition, if you are asymptomatic today, you may have symptoms tomorrow.

This is especially true for key populations, such as the elderly, people with underlying medical conditions, and those who are frail, obese, and heavy smokers, who are at risk of developing and rapidly deteriorating. Zhang Boli said that the general asymptomatic people focus on isolation and observation, and advocate the use of Chinese patent medicine for early intervention, one is to control their symptoms, especially not to turn into an ordinary type; The second is to promote its nucleic acid to turn negative as soon as possible.

There are many asymptomatic patients, which is also related to early screening and early detection.

Since the outbreak of the outbreak, extensive screening has been carried out in various places, and due to early detection, many patients have not yet shown symptoms of infection in the early stage of infection. Zhang Boli said.

With the strengthening of early detection capabilities in various parts of China, the goal of nucleic acid testing in China is to complete the nucleic acid testing task in the demarcated area within 24 hours. The latest deployment of nucleic acid screening has enabled all parts of China to detect infected people as soon as possible and control the source of infection in a shorter period of time. Therefore, compared with the previous detection of sentinel medical institutions with fever and dry cough, many infected people are detected much earlier.

Another important reason is that the population of our country has been vaccinated on a large scale. Zhang Boli explained that the body's immunity of the population is generally enhanced, so it is mostly asymptomatic.

It may reflect several problems, one is that the virulence of the virus is indeed decreasing, so there are more and more asymptomatic infections, and there are fewer and fewer severe cases.

Why is there an increase in asymptomatic infections? It is comfortable to have a sense of self-prevention. Not properly defending yourself. Some people are careless and disobedient.

Asymptomatic infections.

There are many reasons for this, and it has to do with a variety of factors.

Asymptomatic infections are due to the strong immunity of the body, and after the virus enters the body, it is engulfed by immune cells, and then antibodies will be formed to produce special immunity, which can avoid the body from being reinfected with the new coronavirus.

So the patient did not develop the new coronavirus.

The symptoms are called asymptomatic infections. Secondly, asymptomatic infections may also be due to the fact that the virus in the body is still in the incubation period, and once the incubation period has passed, clinical symptoms such as fever, dry cough, fatigue, and dyspnea will appear. Asymptomatic infections generally do not show other discomfort, and a small number of patients may be accompanied by symptoms such as general weakness and mild cough.

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This is easy to understand, for example, everyone has a cold that has mild and severe symptoms. It is common sense that the pathogenicity of the virus will gradually decrease over time.

According to statistics, there has been a significant increase in asymptomatic infections, which are the new coronavirus, and have tested positive after passing nucleic acid tests, but there are no obvious symptoms and signs. Because there is still some gap between asymptomatic infected people and normal infected people, there is no need for special ** for asymptomatic infections, and there is no special drug for the new crown now, so most asymptomatic infections can recover on their own, so for this situation, it is necessary to strictly isolate, strengthen monitoring, and carry out ** if there is a symptom reaction. And the so-called ** is also to improve the body's immunity, some antiviral drugs to carry out**.

Why are there more and more asymptomatic infections now.

Now there are more and more asymptomatic infections, mainly because the coverage of nucleic acid testing is very large, so that a very large number of asymptomatic infections have appeared. And with the continuous mutation of the new crown virus, the transmissibility is also relatively strong, and some mutant strains have also emerged, so this also makes more and more asymptomatic infections. In addition, the rate of severe disease and mortality is also decreasing after a large number of people are now vaccinated against the new crown vaccine, so the proportion of asymptomatic and mild patients is also increasing.

How to find out if you have an asymptomatic infected person.

Because asymptomatic infections have no obvious characteristics, patients may not know whether they feel infected with the new coronavirus, and it is easy to be ignored. Most of the asymptomatic infections are found by being close contacts of the patient. Some asymptomatic infections are tested positive by nucleic acid during the period when they are not sick, that is, during the incubation period, and some have mild symptoms, but when they reach the recovery period, they are also judged to be an asymptomatic infected person if they are tested positive or positive by nucleic acid testing.

Finally, the transmission route of asymptomatic infected people is the same as that of confirmed cases, and they are all transmitted through some contact, so for this situation, you must wear a mask when you go out every day, and try to go to some crowded places as much as possible.

Asymptomatic infections of the novel coronavirus themselves do not have associated clinical manifestations, but are positive on tests for etiology or serum-specific IgM antibodies. This group of people does not need to deliberately ** when they have no symptoms, they need to be isolated, observe the changes in physical signs, and can be released from isolation after the nucleic acid test is negative.

At present, there is no need for **, because asymptomatic infections can be cured through their own immunity.

Asymptomatic infected people still need **, but they may need to be isolated under ** later.