Chinanews.com, Beijing, December 17 (Wei Xianghui) The comprehensive group of the joint defense and joint control mechanism of the State Council announced on the 14th the "Implementation Plan for the Second Dose of the New Crown Virus Vaccine to Enhance Immunization", which also means that the fourth dose of the new crown vaccine in my country has come. up.
Experts called for accelerating the vaccination of key populations. Research and clinical practice on new coronary pneumonia at home and abroad have shown that vaccination of this group of people has obvious benefits.
On December 16, at the vaccination site in Dongfeng Township, Chaoyang District, Beijing, citizens entered to prepare for the booster shot of the new crown vaccine.
Photo by China News Agency reporter Hou Yu
The fourth dose of new crown vaccination has been launched in many places
At present, Beijing, Guangzhou, Hangzhou and other places have successively launched the fourth dose of new crown vaccination.
According to the "Beijing Haidian" WeChat official account, on the 15th, the new crown vaccination site in Wanshou Road Street provided a second booster vaccination for 144 eligible citizens in the jurisdiction, of which 44 were elderly people over 60 years old, and 100 People at high risk of artificial infection.
In order to take care of the older elderly, the street has also prepared "heart-warming buses" to send residents to vaccination points for vaccination.
According to the WeChat official account of "Guangzhou CDC i Health" on the 14th, the China Centers for Disease Control and Prevention launched the second booster immunization study of the new coronavirus vaccine in Guangzhou in advance, and now recruits 14,000 people (7,000 people aged 18-59, ≥ 60 years old and 7000 people) participated.
The recruitment conditions are people aged 18-59 and ≥60 years old who have completed the first dose of booster immunization (commonly known as the third dose of vaccination) and have not been infected with the new coronavirus before.
According to news on the 15th, there are still a small number of recruitment places in each district.
According to Zhejiang News client news, on the 15th, community health service centers and new crown vaccination sites in various districts and counties (cities) in Hangzhou have begun to provide the second dose of new crown virus vaccine booster immunization.
The picture shows a citizen receiving a booster immunization with the second dose of the new coronavirus vaccine through nasal spray.
Photo by China News Agency reporter Hou Yu
Who should get the second booster dose?
The implementation plan clearly states that at this stage, on the basis of the first dose of booster immunization, the second dose of booster vaccination can be carried out in high-risk groups of infection, the elderly over 60 years old, people with serious underlying diseases, and people with low immunity. Immunization.
The time interval between the second dose of booster immunization and the first dose of booster immunization is more than 6 months.
On the 14th, at the press conference of the Joint Prevention and Control Mechanism of the State Council, Xia Gang, director of the Department of Health and Immunization of the National Bureau of Disease Control and Prevention, said that research and clinical practice on new coronary pneumonia at home and abroad show that elderly people over 60 years old, especially those over 80 years old, have People with basic diseases are prone to severe or even critical illness after being infected with the new coronary pneumonia virus, so these people will benefit the most from vaccination.
Zhang Jiming, deputy director of the National Center for Infectious Diseases, chief physician, professor, and doctoral supervisor of Huashan Hospital affiliated to Fudan University, also said in an interview with Chinanews.com: "Our country's policies, including us as professionals, have been calling for people over the age of 60 to People with underlying diseases, immunodeficiency, or heavy smoking, obesity, diabetes and other high-risk groups must get vaccinated."
According to Zhang Jiming, from March to June this year, in his designated hospital, nearly 90% of the critically ill patients with new crown infection were not vaccinated.
"In fact, the vaccine's preventive effect on severe illness is very significant." He also mentioned that even if high-risk groups survive the new crown, they may be reinfected, so it is necessary to carry out a second dose of booster vaccination.
Why is sequential vaccination recommended?
According to the implementation plan, all vaccines approved for conditional marketing or emergency use can be used for the second dose of booster immunization.
All vaccines currently approved for conditional marketing or emergency use can be used for second-dose booster immunization.
Priority should be given to sequential booster immunization (i.e. selection of new crown vaccines with different technical routes for booster vaccination), or the use of vaccines containing Omicron strains or with good cross-immunity to Omicron strains. The implementation plan recommends 9 kind of combination.
Drawing: Wei Xianghui
In fact, as early as February this year, our country had deployed sequential booster immunization.
Since then, experts such as Zhong Nanshan, an academician of the Chinese Academy of Engineering, have repeatedly called for sequential vaccination.
Zhang Jiming said that sequential vaccination is a very important measure, and the effect is better.
He suggested that if the first three doses of inactivated vaccines are administered, the fourth dose can be administered with vaccines of different technical routes such as adenovirus vectors, CHO recombinant proteins, and influenza virus vectors that already exist in China.
Both intramuscular and inhalation vaccinations are available.
However, some of the vaccines currently approved for conditional marketing or emergency use still need to be further deployed locally.
According to the "Zhejiang News Client", Liu Yan, director of the Immunization and Prevention Institute of the Hangzhou Center for Disease Control and Prevention, introduced that Hangzhou currently has Chengdu Wesker recombinant new coronavirus vaccine (sf9 cells), Beijing Wantai nasal spray influenza virus vector new coronavirus vaccine, Zhejiang clover recombinant new coronavirus protein subunit vaccine (CHO cells) and Shenzhou cell recombinant new coronavirus 2-valent S trimer protein vaccine are yet to be released at the provincial level, and other types of new coronavirus vaccines are available.
(Finish)