According to the press conference of the joint prevention and control mechanism of the State Council held on January 13, from December 1, 2022 to January 12, 2023, one case of indigenous Omicron variant XBB was detected in the mainland. The continent is at risk of continued importation of XBB and its subclades.
Li Tong, chief physician of the Department of Infection of Beijing You'an Hospital, once said that the clinical manifestations of XBB virus infection are not much different, and the possibility of causing a large-scale epidemic is relatively low, and the "Yangkang" population is immune to XBB in the short term, but key groups should focus on strengthening protection during the Spring Festival.
XBB has the potential to be shortened
The period of protection acquired by previous infection
"According to the study of some variants of XBB and its subbranches, it is currently considered to be the variant with the strongest immune evasion ability." Li Tong once told reporters that XBB has the potential to shorten the protection period we received from previous infections with BA.5 or BF.7, and the new mutant strain may escape the immune barrier established by previous vaccinations and natural infection.
"For example, we generally think that the risk of secondary infection within 3-6 months is very small, and the protection period of healthy people can reach more than half a year, and people with poor immune function usually think that they can also protect for more than 3 months. But XBB, if popular, could shorten this protection time. Li Tong once explained that this conclusion comes from the observation of some foreign research teams, but how long XBB will shorten the protection period needs further research.
XBB virus pathogenicity
There was no significant increase
On January 13, at the press conference of the joint prevention and control mechanism of the State Council, Chen Cao, a researcher at the Institute of Virology of the Chinese Center for Disease Control and Prevention, said that the current research data shows that although XBB is more transmissible, after being infected with XBB, the symptoms produced are similar to other Omicron strains, and the pathogenicity has not increased significantly.
Li Tong once said: "According to foreign research data, the clinical manifestations of XBB are not significantly different from the previous strains. So we think that even if the second infection is second, there may not be much difference in clinical manifestations. For the previous rumors that "XBB infected people are more likely to have some symptoms of cardiovascular and cerebrovascular or diarrhea", Li Tong has said that according to the current research on XBB epidemic areas abroad, there is no obvious tendency.
"Yangkang" is immune to XBB
Do a good job of protection during the Spring Festival
According to the press conference of the joint prevention and control mechanism of the State Council, from December 1, 2022 to January 12, 2023, only one local XBB infection case was monitored. During the same period, 33 imported cases of XBB and its subclades were detected from 20 countries and territories. Chen Cao introduced that at present, XBB has not formed a local popularity.
Li Tong once said: "In the short term, the 'Yangkang' population is immune to XBB, everyone should pay attention not to stay up late during the Spring Festival, avoid fatigue, do not drink a lot, and take protective measures normally." ”
"For the elderly, people with underlying diseases, and those who have not been impotent or vaccinated, it is still necessary to focus on strengthening protection." Li Tong once stressed that in addition to the new crown, respiratory infectious diseases such as influenza and syncytial virus are also in the epidemic season, and attention should be paid to the increased risk of infection in the process of visiting relatives and friends.
Go home for the Spring Festival
Bring these 9 health tips
Spring Festival is coming,
What should I do before returning home?
How to protect yourself on the way home?
How to protect the elderly after returning home?
"Yangkang" people in terms of diet and exercise
What to pay attention to?
Celebrate the Spring Festival safely,
Give you 9 "health tips",
Come and see if there is no yang and yang.
Source: People's Daily
Editor: Huangfu Yuqi
Responsible editor: Huang Qing, Hou Jiayin
Editor-in-chief: Li Chun
Executive Producer: Hu Yang
Produced by: Shenyang.com
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