With the prevalence of variants such as Delta, the global epidemic has rebounded sharply.
Some time ago, my country was also faced with a complex situation of multiple sources and multiple points in a short period of time.
What is the current situation of the epidemic?
Is the new coronavirus vaccination effective?
Should I get the third booster shot?
Who fights?
how to spell?
Several experts responded to this at a press conference held by the Joint Prevention and Control Mechanism of the State Council a few days ago.
Vaccination is good for the control of this round of epidemic
"At present, the current round of the epidemic in my country has been effectively controlled." Mi Feng, spokesperson for the National Health Commission and Deputy Director of the Propaganda Department, introduced at the meeting that the country’s existing local confirmed cases have continued to decline since the first drop on August 16. Decline in 11 days.
As of August 26, there are 26 provinces and Xinjiang Production and Construction Corps as low-risk areas, and the number of medium-high-risk areas has dropped to 38.
In the epidemics in Nanjing, Yangzhou, Zhengzhou and other places, some people were still infected after being vaccinated.
Some people are worried about whether the new coronavirus vaccine has played a role in this round of the epidemic?
"It can be said clearly that the new crown vaccination is beneficial to the control of this wave of epidemics." Zheng Zhongwei, the leader of the vaccine research and development team of the State Council's Joint Prevention and Control Mechanism Scientific Research Group, gave a set of data: in severe cases People who have completed the immunization program for more than 14 days account for less than 5% of severe cases. That is to say, more than 95% of critically ill patients are those who have not been vaccinated or have not completed the immunization program; among the severely ill people over 60 years old, more than 90% Of people have not been vaccinated or have not completed the immunization program.
Among them, none of the critically ill patients in Yangzhou were vaccinated.
"This epidemic has spread to dozens of cities. Compared to last year, there were fewer cases without widespread vaccination." According to Zheng Zhongwei, the epidemics in Nanjing, Yangzhou, Zhengzhou and other places are all Delta strain infections. Recent research conducted by the team of Academician Zhong Nanshan on the Guangdong epidemic showed that after two doses of vaccine, the protection effect against moderate new coronary pneumonia reached 70%, and the protection effect against severe cases reached 100%.
A study by the Guangdong Provincial Center for Disease Control and Prevention found that the viral load of those who were not vaccinated or who received only one dose was three times that of those who had received the vaccine. That is to say, the risk of infecting others after the vaccine was also reduced of.
Zheng Zhongwei emphasized that the current situation in all aspects shows that my country's new crown virus vaccine clearly has the ability to prevent infection, prevent severe illness and death, and the public does not need to doubt the role of the new crown virus vaccine.
Wang Huaqing, chief expert of the Chinese Center for Disease Control and Prevention's immunization program, reminded that the new crown virus vaccine completes the entire vaccination to produce better immune and protective effects, that is, two doses of inactivated vaccines and three doses of protein subunit vaccines.
He suggested that those who have not yet completed the immunization procedures must complete the vaccination in time according to the procedures.
Enhanced vaccination can improve the protective effect of the vaccine
For people who have been vaccinated against the new coronavirus for 6 months, do they need a booster shot?
Who can carry out booster vaccination?
"Recently, our vaccine research and development team organized experts to conduct special research on whether to carry out booster vaccination." Zheng Zhongwei introduced, combining the research results of Sinopharm Zhongsheng and Beijing Kexing on booster vaccination, and found that vaccination with booster vaccination is safe. After the third dose, the recipient's antibody level rose rapidly.
"It started to increase after 3 days, and rose to a higher level after 7 days. By 14 days, it was about 10-30 times the original." Zheng Zhongwei said. After a month, the antibody still dropped, but the low point it dropped to exceeded the peak of the previous 2 doses.
From the perspective of immunogenicity, booster vaccination can improve the protective effect of the vaccine.
"The current situation in my country's epidemic prevention and control is very good, and the focus is on foreign imports." Zheng Zhongwei said that for staff with high import risks, such as customs, border inspections, aviation, quarantine points, designated medical institutions, etc., they are completing immunization procedures6 Months later, booster vaccination can be carried out.
"In routine vaccination, we found that people with relatively low immune function and people over 60 years of age did not produce as good immune effects as those aged 18-59 years old. However, these people are precisely the high-risk groups after infection. The risk of severe illness, critical illness, and death is higher than that of other people." Zheng Zhongwei said that experts suggest that such people can receive a booster shot 6 months after vaccination.
In addition, due to the needs of work, study, and communication, some people in my country have to go to high-risk areas or countries overseas. Experts suggest that such people can be immunized after 6 months of vaccination.
Experts believe that further research is needed on whether to carry out booster immunization for the entire population 6 months after vaccination at this stage, and comprehensive research and judgment should be made based on the situation of the epidemic.
The elderly are one of the top priority groups for vaccination
"From the previous monitoring results of the new crown disease in various countries around the world, the elderly over 60, especially with the increase of age, have a higher rate of severe illness and a higher mortality rate." Wang Huaqing said that in fact, these people suffer from After illness, the proportion of hospitalization, treatment, and rescue is relatively large, and the hospital stay is relatively long.
Therefore, in terms of vaccination strategies in various countries, the elderly, especially those with underlying diseases, are one of the top priority groups for vaccination.
"The elderly group is quite special. In the process of vaccination, the following aspects need to be emphasized." Wang Huaqing said. First of all, the proportion of the elderly suffering from basic diseases is relatively large, and some may suffer from two or more types of diseases. disease.
Therefore, before vaccination, you must make an assessment of your current disease status.
If the underlying disease is in a stable phase, you should get vaccinated.
However, some elderly people cannot make an assessment of their physical condition. At this time, they can consult a doctor or the clinician at the vaccination site.
"In addition, before going to the vaccination site, make an appointment to avoid waiting time for the elderly on the spot." Wang Huaqing pointed out that the elderly should wear looser clothes when going for the vaccination to facilitate the vaccination.
At the same time, it is necessary to understand vaccine-related knowledge, disease knowledge and vaccination procedures.
"When you go to the scene, the requirements for the elderly are the same as those for other vaccinated groups." Wang Huaqing said that the elderly should also take personal protection, and when necessary, they should be accompanied by their family members to the vaccination point for vaccination.
At the same time, elderly people with basic diseases should report their health and illness to the vaccination doctor so that the vaccination doctor can make a corresponding judgment.
"The elderly must stay for 30 minutes after vaccination." Wang Huaqing emphasized that the observation should be at the vaccination site, sitting in a chair for 30 minutes to prevent other accidents from happening.
Our reporter Wang Meihua
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