The National Health Commission organized experts to answer questions related to the new crown "two yang" infection

Core reading

Overall, experts believe that there will be no large-scale epidemic in the short term, nor will it have a significant impact on the normal local medical order and social operation. People infected at the end of last year still have effective antibody protection, and even if they are reinfected, the symptoms are generally mild. At present, whether it is a primary infection or a second infection, the proportion of severe disease is very low. It is recommended that the elderly and other groups do a good job of personal protection and seek medical attention in time if infected.

Recently, some people have developed new crown "two yang", and some people have new crown-related symptoms such as sore throat. What are the symptoms after the new crown "two yang"? What should I do if there is "Er Yang"? The National Health Commission organized experts to answer questions.

The XBB series variant is mainly circulating, and there is no obvious change in pathogenicity

"From the monitoring data, the main circulating strain of the new coronavirus in China is the Omicron XBB series variant." Chen Cao, a researcher at the Institute of Virology of the Chinese Center for Disease Control and Prevention, said that it has been more than 5 months since the "Class B tube", and exchanges between China and the international community have been increasing, and the composition of domestic new coronavirus strains has been significantly affected by international influence. In early May, the composition ratio of XBB series variants in imported cases in China has reached 5.95%, which is basically consistent with the proportion of XBB series variants in the world. Among the indigenous cases, the proportion of XBB series variants increased from 6.2% in February to 0.2% in early May, and BA.5.83, BF.6 and BA.5 series variants together accounted for about 2.7%.

"The XBB series variant is a recombinant variant of the new coronavirus Omicron. The research data showed that compared with the early circulating Omicron variant, its transmissibility and immune evasion ability were stronger, but there was no significant change in pathogenicity. Chen Cao said that everyone should look at the epidemic scientifically, adhere to the good hygiene habits that have been developed, do not panic too much, do not be careless, and maintain a good attitude.

"Overall, we believe that there will be no large-scale epidemic in the short term, nor will it have a significant impact on the normal local medical order and social operation." Wang Liping, a researcher at the Department of Communication and Prevention of the Chinese Center for Disease Control and Prevention, said that the monitoring of the national infectious disease network direct reporting system shows that since late April, the number of confirmed cases reported nationwide has shown an upward trend, especially after the "May Day" holiday. The upward trend in the number of confirmed cases reported nationwide has slowed in the recent week. Fever clinic monitoring data show that since late April, especially in May, the number of patients attending fever clinics nationwide has increased, and the new crown positive detection rate has remained at about 4%. It is expected that in the next period of time, the national epidemic will show a slow upward trend, and it is not ruled out that the epidemic situation in some areas will increase.

Chen Cao said that the disease control department will continue to do a good job in the surveillance of confirmed cases and cluster epidemic variants in sentinel hospitals, strengthen the monitoring of variant strains of severe and special population cases, and do a good job in monitoring imported variants with customs departments. China has established a multi-channel monitoring and early warning mechanism, once the epidemic is found, local disease control departments will verify, assess, warn, and deal with it, and will also respond to concerns to the society in real time.

Secondary infection generally has a shorter course of disease, a shorter fever time, and a lower fever degree

"People infected at the end of last year still have effective antibody protection, and even if they are reinfected, the symptoms are generally mild." Wang Guiqiang, director of the Department of Infectious Diseases of Peking University First Hospital, analyzed that whether the new coronavirus infection is a primary infection or a secondary infection, the clinical manifestations are similar, that is, viral infection. However, after infection, there are many factors that affect the severity of the disease, including the amount of viral infection, basic immune status, previous vaccination status, etc., so everyone may feel differently. On the whole, people who are reinfected or re-infected, whether it is BF.7 or BA.4.5 of the original Omicron strain, or the current XBB, have mild symptoms. For example, the duration of the disease is shorter, the duration of fever is shorter, and the degree of fever is lower.

"Clinically, the current proportion of severe disease is very low, whether it is initial infection or reinfection." Wang Guiqiang said that the proportion of new crown hospitalizations is very low, and some elderly people who need to be hospitalized have not serious new crown symptoms, but the underlying disease is very serious and requires hospitalization.

Wang Guiqiang said that the original people who are not infected, the elderly, those who have not been vaccinated, and people with underlying diseases are people of high clinical concern and need key protection. It is recommended that these high-risk groups pay attention to protection and avoid infection as much as possible. Elderly people with underlying diseases, with fever, upper respiratory tract infections and other symptoms, at least do antigen testing, so that you have a clear idea, if it is a new crown virus infection, you should seek medical attention in time. Antiviral drugs are now available, and early antiviral therapy in people at higher risk for severe disease can reduce the risk of severe disease.

Wang Guiqiang suggested that once infected with the new crown or "two yang", it is still necessary to do a good job of personal protection, especially if there are elderly people at home, especially those with underlying diseases such as bedridden, to avoid causing family infection and minimize harm. It is necessary to avoid working with illness, avoid participating in gathering activities, do a good job of personal protection when going out, and recover at home as much as possible.

Recently, some people have symptoms of sore throat, is it caused by the new coronavirus? Wang Guiqiang said that in the upper respiratory tract of the human body, the throat is a portal, and sore throat is a common manifestation of respiratory infections. Whether it is a new coronavirus, or a flu virus, even if it is a bacterial infection, such as mycoplasma, chlamydia, etc., there will be a sore throat. If there is a sore throat, you can use some antipyretic and analgesic drugs, or drink more water and pay attention to rest, which can be effectively relieved.

Maintain a healthy lifestyle and take personal protection

"The symptoms of secondary infection are very mild, and from the perspective of Chinese medicine, it is a wind-fever cold, showing the characteristics of wind-heat cold." Liu Qingquan, president of Beijing Hospital of Traditional Chinese Medicine, analyzed that many places are now shifting from spring to summer, and the weather is gradually hot. When the weather is hot, the illness caused by wind and heat increases. After secondary infection, there are symptoms of wind and fever, such as sore throat, mild cough, low-grade fever, etc., and the use of traditional Chinese medicine drugs for treating wind and fever is very effective, such as clearing heat, relieving the surface of wind, and throat drugs. People with low-grade fever use these drugs, the fever can be reduced in less than 24 hours, the throat will not hurt, and the systemic symptoms will gradually disappear.

Liu Qingquan said that in the case of secondary infection, there is no need to panic. Do a good job of personal protection, wash hands frequently, avoid places where people gather, open more windows for ventilation, etc.

"To maintain a healthy diet, it's best to eat lightly." Liu Qingquan said that from the perspective of traditional Chinese medicine, colds caused by wind and heat are most easily violated by people with heat and evil accumulation. Eating heavy oil, spicy and salty foods often will quickly generate heat accumulation in the body, and it is easy to catch a cold or contract the new crown virus. Therefore, the diet should be light, to keep the gastrointestinal clean, to prevent the gastrointestinal heat accumulation, the probability of reinfection will decrease.

Liu Qingquan said that for children and adolescents, eat less fast food and drink less carbonated drinks. Children and adolescents are originally yang fever constitution, often eat fast food, drink carbonated drinks, the body will produce heat accumulation, the probability of infection with the new crown virus will be greatly increased. They are more likely to spread outward after infection because the child has more learning activities. It is necessary to maintain a regular routine, go to bed early, and eat lightly.

Wang Liping said that after entering the "B class B tube", the goal of my national defense control is to maintain health and prevent severe illness, so for people with a high risk of severe illness, such as the elderly, especially the elderly over 80 years old, patients with serious underlying diseases, we must do a good job of personal protection, avoid going to places where many people gather, usually pay attention to hand hygiene, go to a closed environment with many people, and pay attention to wearing masks.

Reporter Shen Shaotie (Source: People's Daily)