Can the new crown virus vaccine be "mixed"? On February 19, the joint prevention and control mechanism of the State Council held a press conference revealing that the mainland has launched a sequential strengthening of immunization in key areas. Today, Guangzhou Daily Xinhuacheng reporter learned from the Guangzhou Municipal Center for Disease Control and Prevention that Guangzhou has recently started relevant work, vaccinating people over the age of 18 who have been 6 months with two shots of the new coronavirus inactivated vaccine produced by Beijing Biology, Kexing Zhongwei or Wuhan Biology, and now there are two more options for vaccination and reinforced injections. Disease control experts especially remind that at present, the state does not give priority to which way to strengthen immunity, and it is of much greater significance to strengthen and increase the level of antibodies as soon as possible than to wait for a vaccine for "sequential strengthening".
The "third stitch" has a new option
"Sequential immunization" refers to the use of different technical routes of vaccine alternating vaccination to complete the entire immunization process, while "sequential booster immunization" refers to the use of vaccines with different technical routes from basic immunization for enhanced vaccination.
(Zhang Chunhuan, Deputy Director of the Immunization Planning Department of Guangzhou Municipal Center for Disease Control and Prevention)
Zhang Chunhuan, deputy director of the Immunization Planning Department of the Municipal Center for Disease Control and Prevention, introduced that in accordance with the unified deployment of the state and the province, Guangzhou has launched the procedures for the sequential strengthening of the new crown virus vaccine, and citizens aged 18 and above have completed the full vaccination after using the new coronavirus inactivated vaccine produced by Beijing Biology, Kexing Zhongwei or Wuhan Biologics, when receiving the "third injection", in addition to continuing to choose to inactivate the vaccine for homologous enhanced immunization, It is also possible to choose one of The recombinant protein vaccines of Chifiron Koma or one of Cansino's adenovirus vector vaccines for sequential immunization, that is, the use of non-inactivated vaccines to enhance the sequential enhancement of the whole process of immunization of inactivated vaccines.
For the target population, homologous booster immunization and sequential booster immunization can be selected. Populations that have already undergone booster immunization do not currently need a "fourth dose".
According to the data, as of 24:00 on February 20, Guangzhou has received a total of 49.442 million doses of new crown vaccines, and the number of immunizations in the whole process is about to exceed 20 million, and the number of people who strengthen immunization is about to exceed 10 million.
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Early vaccination of booster injections is far more significant than that of a vaccine such as a specific one
Zhang Chunhuan introduced that compared with the sequential enhancement of immunization and homologous enhancement of immunization, there is no special point in contraindications and precautions, and the incidence of adverse reactions, the former is the same as the latter, or even lower, indicating that the sequential enhancement of immunization is safe and reliable, "There is also a point that can remind everyone: the first contraindication to the new crown virus vaccination is allergic to the ingredients contained in the vaccine, and this small group of people can no longer be vaccinated with the same variety of vaccine." And now that there is a sequential booster of immunization, it means that these people can now receive booster immunization through other routes of vaccines."
Since the sequential strengthening of immunization work has just started in Guangzhou, the new crown virus vaccine provided by the vaccination points in the city is still mainly inactivated vaccine, "We have made a demand plan for provincial disease control, and it is expected that the supply of two vaccines, recombinant protein vaccine and adenovirus vector vaccine, will come up in the near future." At the same time, the Guangzhou new crown virus vaccine appointment system is being updated, and it is expected that the public can strengthen immunization in the near future through the "New Crown Vaccination Appointment" special area on the "Guangzhou Health Pass" WeChat Mini Program.
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"Studies on the actual protective role of several domestic new coronavirus vaccines in the epidemic show that vaccination can reduce the risk of infection and transmission of the Delta variant, which has a significant protective effect on severe illness and death; and for the Omiljung variant, vaccination can also greatly reduce the chance of pneumonia after infection, and further reduce the risk of severe illness and death." In addition, enhanced immunization also has a certain preventive effect on preventing the Outbreak of the Aomi Kerong strain from breaking through infection (that is, the situation of still being infected after vaccination). Therefore, strengthening immunization is of great significance for both epidemic prevention and control and personal health. Zhang Chunhuan said.
At the same time, Zhang Chunhuan particularly emphasized that whether it is homologous strengthening or sequential enhancement of immunization, is safe and effective, at this stage the country for the use of which way to strengthen immunity is not recommended, "early strengthening, as soon as possible to increase the level of antibodies, the significance is far greater than for the 'sequential strengthening' and specially wait for a certain vaccine, because in the process of waiting, it is in a dangerous stage of low protection." ”
Text/Guangzhou Daily, Xinhuacheng Reporter: Wu Ling Correspondent: Sui WeiJianXuan, Sui Disease Control
Photo/ Guangzhou Daily, Xinhuacheng reporter: Chen Youzi, Zhuang Xiaolong, Wu Ling
Guangzhou Daily New Flower City Editor: Lin Xiahong