Original title: Zhong Nanshan’s latest judgment: The vaccine‘s effect has declined after half a year, and it needs to be replanted in time to strengthen the injection
Source: South+
On the evening of November 11, the General Assembly of the Global Mayors Forum with the theme of “Going Together to Promote the Modernization of Global Urban Governance” opened at the Yuexiu International Conference Center in Guangzhou.
At the meeting, Zhong Nanshan, academician of the Chinese Academy of Engineering, gave a special speech, sharing his views and opinions on Guangzhou’s experience in responding to the epidemic, the characteristics and prevention of Delta variant infection, and the main preventive measures for new coronavirus vaccine injection.
“After the two doses of the new crown vaccine have been vaccinated, a third dose is required. Regardless of whether the whole virus inactivated vaccine or the mRNA vaccine, the humoral immune function will be significantly reduced after half a year of treatment.” At the forum, Zhong Nanshan said that the global vaccines have this This is a problem, so the third dose of vaccine must be supplemented. At present, 1.073 billion people in China have completed the entire vaccination process, with an inoculation rate of 75.8%, and 41.713 million people have been intensified vaccination.
On October 7 this year, the Chilean Ministry of Health released data showing that after Coxing strengthened its immunization, the protective effect was enhanced, and the protective effect of symptomatic new coronary cases increased from 56% to 80%.
Zhong Nanshan said that China’s vaccine is effective. When the Delta variant appeared in Guangzhou in May this year, none of the vaccinated patients had a serious illness. Delta mutant strains have the characteristics of short incubation period and fast spread. In the comparison of the transmission power of Delta mutant strains with common strains and other infectious diseases, the infectivity of Delta mutant strains is stronger than that of MERS and others.
In dealing with the Delta mutant strain, Guangzhou has taken a variety of measures. include:
Update the concept of “close connection”. For Delta mutant strains, closed and closed modes have been formulated.
Adopt the “yellow code” system. Through big data, people who have been to high-risk areas are assigned the “yellow code” sign, and the “yellow code” personnel are required to complete nucleic acid testing as soon as possible within 24 hours, and the frequency of nucleic acid testing for “yellow code” personnel is increased.
Carry out large-scale rapid screening. Guangzhou set up the “Falcon” air film laboratory to assist in screening of all employees in some areas.
Under a series of measures, the transmission index of Delta variants in Guangzhou has been continuously decreasing.
Zhong Nanshan said that the problem of the epidemic lies in how to balance it. On the one hand, we must restart the economy and on the other hand, we must control the epidemic. This requires precise prevention and control.
When will normalcy be restored?
Zhong Nanshan believes that under the premise that the virus fatality rate is controlled at 0.1%, the replication index is controlled at 1.0-1.5, and the transmission coefficient is reduced, it can be completely open. But to achieve the prerequisites, it is necessary to vaccinate the entire population, establish herd immunity, normalize community prevention and control, and develop effective drugs.
“Every corner is uneasy, and the world is at stake.” Zhong Nanshan once again emphasized that the prevention and control of the epidemic must not be slack.
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