Recently, "Eryang" related topics have been frequently searched, and since the peak of a wave of infections across the country at the end of last year, the new crown has once again attracted public attention.
According to China CDC, the main epidemic strain in mainland China is the Omicron XBB series variant, and experts have comprehensively judged that the epidemic caused by it will continue for a period of time, but the overall situation is stable and controllable.
What exactly does Er Yang feel?
What are the symptoms of a secondary infection? At the end of 2022, some media interviewed 9 infected people with an interval of 2~9 months between the two infections, and their infection symptoms were very different:
Some people have milder symptoms of the second infection and feel like the common cold;
Some people have a significant decrease in physical fitness and obvious fatigue after two yang;
There are also people who have mild symptoms of the first infection, but the pain of the second time is at least 3 times more than the first time...
Li Tong, chief physician of the Department of Infectious Diseases of Beijing You'an Hospital affiliated to Capital Medical University, once introduced that the symptoms of Eryang patients are mainly fever, sore throat, cough, nasal congestion and runny nose, and some people will have headache, muscle aches, joint pain, and some patients will have symptoms of vomiting and diarrhea.
Overall, it is milder than the first infection
It was observed that the people with secondary infection were mainly young adults, that is, people aged 18~60.
In general, the symptoms of these people are obviously milder than the first infection, such as severe headache, "blade voice", severe cough in the first infection, which takes 5~7 days to recover, and the second infection has a slight pain in the throat and recovers faster, generally 3~5 days to recover.
Young and immunocompetent people who gain resistance after the first infection, fight the virus more easily and more easily in the face of the second infection, and recover faster.
Is Eryang because immunity "expires"
After being reinfected, many people are worried: Does Eryang mean that immunity is not enough? In fact, whether you will be infected again is related to the level of antibodies in the body.
Yin Zundong, a researcher at the Immunization Planning Center of the Chinese Center for Disease Control and Prevention, said that reinfection after vaccination is usually called mixed immunization.
The level of antibody protection in the case of mixed immunization is higher than that of vaccine alone or infection alone, persistence and antibody levels, and will be maintained at a relatively high level within 3 months.
The likelihood or incidence of secondary infection in the short term is relatively low, and studies have shown that the incidence of secondary infection within 3 months is 5% or less.
But over time, the immune protection produced by the infection or vaccine decreases, and this decline mainly refers to the level of protection against the onset of infection or mild disease.
Yin Zundong said that after vaccination or recovery from infection, immunity will be generated for a period of time to protect against subsequent virus invasion.
But now there are also studies at home and abroad that including viral infection, 3 or more antigen stimulation will produce a better protective effect.
Yin Zundong introduced that comprehensively considering the current vaccination or infection background of various groups of people in China, mainly those who are not infected and have not completed the immunization program, as well as those who have infection but have not completed basic immunization in the early stage, the number of antigen stimulation in this part of the population is insufficient, and it is recommended to be vaccinated next.
From the monitoring of disease control, experts believe that there will be no large-scale epidemic in the short term, and it will not have a significant impact on the normal local medical order and social operation.
Chen Cao, a researcher at the Institute of Virology of the Chinese Center for Disease Control and Prevention, said that compared with the subbranches of the early epidemic Omicron variant, the XBB series variant has no obvious change in virulence, so there is no need to panic.
Suspect that I am two yang, so deal with it
Li Tong once said that the first thing to do is to judge whether he is infected with the new crown virus.
Whether you have recently been in contact with new crown cases or people with fever and respiratory symptoms, if you have been in contact and have similar symptoms, it is likely to be infected, and you can do an antigen test to determine.
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If the antigen is positive, it is necessary to ensure rest, home isolation, and generally recover in about 5 days.
If after rest, feel that the symptoms are still aggravating, especially if there is fever or even chest tightness and breath holding for more than 5 days, you should go to the hospital for diagnosis and treatment in time.
Although it is not recommended that everyone worry too much, for the new crown virus, you should not be too careless, and it is still important to do the following well.
Get vaccinated
Vaccination can effectively reduce the risk of severe and critical disease, especially for high-risk groups who have not been vaccinated, and vaccination is recommended to prevent the occurrence of severe disease.
Pay attention to personal protection
Avoid going to places where many people gather, pay attention to hand hygiene, and wear masks and maintain social distance when going to closed environments with many people.
People at high risk of severe disease should have some medicine
Zhang Guoliang, director of the Department of Infectious Diseases of the First Affiliated Hospital of Anhui College of Traditional Chinese Medicine, suggested that the elderly over 65 years old, especially those over 80 years old, as well as vulnerable people with underlying diseases such as hypertension, coronary heart disease, chronic bronchitis, chronic liver and kidney disease, and diabetes, should still be vigilant.
However, it should be noted that the preparation of medicines should also be according to daily needs, and there is no need to reserve a large amount, and it is not recommended that everyone rush to buy. ▲
Editor of this issue: Xu Menglian