Our reporter Zhang Jiaxing
106 of the 133 infected people are related to the chain of travel group transmission!
On October 24, the State Council’s Joint Prevention and Control Mechanism held a press conference to inform about the latest situation of the epidemic. Wu Liangyou, deputy director of the National Health Commission’s Disease Control Bureau, believes that the number of non-tourism cases has begun to increase, indicating that it is the current round of epidemics. During the rapid development stage, the number of cases discovered in the next few days will continue to increase.
"The risk of foreign epidemics entering our country is still very high, and strengthening immunization is of great significance for protecting susceptible people and effectively curbing the spread of the epidemic." Wu Liangyou said.
It is recommended to vaccinate a booster shot of homologous vaccine
Based on the results of expert research and demonstration and the needs of epidemic prevention and control, the State Council's joint prevention and control mechanism has recently launched the new coronavirus vaccine strengthened immunization work.
"The current strategy for enhanced immunization in China is homologous vaccination." Wang Huaqing, chief expert of the China Centers for Disease Control and Prevention's immunization program, introduced that heterologous vaccination must have evidence and relevant research results to support its safety and effectiveness. Follow-up will be based on The results of sequential immunization of related enterprise research are used to demonstrate and make relevant recommendations.
According to reports, at the recent immunization strategy consultation meeting, the World Health Organization put forward recommendations for strengthening immunization against influenza vaccines, malaria vaccines, and new crown vaccines. It also recommended the use of homologous vaccines, that is, vaccines with the same technical route.
"The vaccine research and development class organizes experts to conduct special demonstrations on the enhanced immunization strategy of the new crown vaccine. Based on the results of the previous enhanced immunization research, the enhanced immunization strategy is proposed in consideration of vaccine safety, immunogenicity and other related factors." Wang Huaqing said that the expert group recommended in Six months after the completion of the full course of immunization, a booster vaccination will be carried out for key populations, mainly high-risk groups. It is recommended that elderly people over 60 years old may consider booster vaccination.
According to the requirements of work deployment, all localities will make overall plans to consider the needs of epidemic prevention and control at ports, borders, and major events, and expand the scope of the population for enhanced immunization.
Intensive immunization services are also provided for other eligible people who need vaccination.
Even if it needs to be strengthened, the number of doses is limited
Studies have shown that with the passage of time of vaccination, the level of neutralizing antibodies of the recipients is decreasing, and the protective effect is weakening.
Since the protective effect of the new crown vaccine will be weakened, after the third shot, do I still need to vaccinate the fourth and fifth shots?
"Continuously boosting immunizations and constantly launching booster vaccination are not our final choice." Wang Huaqing said that the new crown pneumonia is a new infectious disease, the new crown virus is a new virus, and the vaccine now used is also a new vaccine.
The new crown vaccine includes a number of technical routes, and continuous research is needed to determine the best immunization program.
Even if it needs to be strengthened later, the number of strengthening agents is limited.
"We hope that in the future there will be better vaccines and better vaccination procedures to strengthen the protection effect." Wang Huaqing said that the number of doses of a vaccine, who is given, and when is an important part of the immunization program.
The immunization program needs to be scientifically formulated based on the relevant results of the previous research, such as the safety, effectiveness, protective effect of the vaccine, and the need for disease control.
The new crown vaccine booster vaccination is an immunization strategy comprehensively determined based on the current situation and research results, and is an effective measure to quickly rebound the antibody level.