Currently, a large number of people infected with the new coronavirus are gradually getting better, and many people have returned to work one after another. Some people began to take care of their relatives who were infected after being "well". Many people are worried that if the strain of the new coronavirus is different, will they be infected by the new coronavirus again? To this end, the reporter interviewed Zhang Boli, an academician of the Chinese Academy of Engineering, and asked him to answer questions related to the secondary infection of by the new coronavirus .
"Yangkang"
The probability of secondary infection is low within 3 to 6 months
"The probability of reinfection with the new coronavirus is mainly related to the human immunity level, virus strain mutation and later personal protection." Zhang Boli said that compared with early mutant strains, the strains of the Omicron family can cause more breakthrough infections and repeated infections, and can escape the antibodies in people who have recovered from the new coronavirus infection.
Zhang Boli said that everyone does not need to worry too much. Although there is no large-scale population evidence to show the specific time for sustained immunity after infection with the Omicron variant, the human immune system is already functioning after infection with the new coronavirus. Current clinical observation shows that the probability of secondary infection with the new coronavirus within 3-6 months after infection is still relatively low.
Many people are worried that a second infection with the new coronavirus will worsen symptoms. Zhang Boli said that the situation of a second infection with the new coronavirus varies from person to person. And after secondary infection, the severity of the disease is related to various factors such as the dose of virus infection, the pathogenicity of the new coronavirus variant, and personal health status. However, judging from most current reports, because the body has developed immunity , the symptoms of the second infection will generally be milder than the last time.
However, Zhang Boli emphasized that there are also a few studies reporting that compared with patients who have only been infected once, patients who are infected again have a higher risk of complications, including pulmonary, cardiovascular, diabetes , gastrointestinal and nervous system complications.
recommends that "Yangkang"
get the COVID-19 vaccine after 6 months
Will he be infected if he goes to work with "Yangkang"
?
Recently, many people infected with the new coronavirus have gradually recovered after being treated at home, but some are still infected. These people are called by netizens as having entered the "finals" of epidemic prevention. So some people began to worry, will they be infected if they come into contact with "Yangkang"?
Many infectious disease experts said that if the "Yangkang" people's several antigen tests before returning to work are negative, they are no longer contagious; at the same time, reminds people not to judge whether they are contagious simply based on the time of infection. People who have "Yangkang" can do an antigen self-test before returning to work.
"Only when an infected person contains the new coronavirus in their body during the infection and onset stages can they infect others." Professor Sheng Jifang, deputy director of the State Key Laboratory of Diagnosis and Treatment of Infectious Diseases and director of the Department of Infectious Diseases at the First Affiliated Hospital of Zhejiang University School of Medicine, said, "COVID-19 patients After treatment and recovery, if the antigen self-test is negative, it means that the toxins in the body have been eliminated, and there is no virus replication in the body, and it is no longer contagious. "
Some people who have been "positive" think that they have been infected for more than a week or more than ten days and now have no symptoms. They should have recovered and are no longer contagious. Sheng Jifang emphasized that everyone’s physique, age, and condition are different. Some people’s infection takes a long time to become negative, while some people’s time is short. cannot determine whether it turns negative simply based on the time of infection. An antigen test should be done.
Li Tong, chief physician of the Department of Infectious Diseases at Beijing You'an Hospital and a medical expert at Xiaotangshan Fangcang Hospital, previously said, "If you still have cough symptoms, it is recommended that everyone wear a mask when returning to work and when visiting relatives and friends, especially those working in important positions such as nursing homes and medical institutions. If you want to visit the elderly, infants and young children, it is best to wait until no less than 10 days have passed since the onset of the disease, and at the same time meet the conditions for turning negative, so that you can basically think there is no problem."
In terms of personal protection, Sheng Jifang emphasized that people returning to work should still wear masks, wash hands frequently, ventilate frequently, maintain a safe distance, pay attention to keeping warm, drink plenty of water, and keep the nasal mucosa moist, which is helpful to avoid other symptoms. Other virus infections are still very important.
Source: Guangzhou Daily, Science and Technology Daily, People's Daily, etc.
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