Build a Great Wall of Immunization for All
Home-made new coronavirus vaccine is safe and secure
Our reporter Wu Jiajia
After the outbreak of the new crown pneumonia epidemic, my country quickly deployed multiple technical routes to develop vaccines.
At present, 5 vaccines have been approved for conditional marketing or emergency use, including 3 inactivated vaccines, 1 adenovirus vector vaccine and 1 recombinant protein vaccine.
At the moment, my country is accelerating the work of new coronavirus vaccination. The public is very concerned about the safety and effectiveness of the new coronavirus vaccine. For this, the reporter interviewed relevant experts.
According to Wang Junzhi, academician of the Chinese Academy of Engineering, the composition of the inactivated vaccine is the closest to the natural virus structure. It is relatively stable, convenient to transport, and usually has a strong immune response. Generally, two-dose immunization is used, which has good safety.
The preparation process of adenovirus vector vaccine is relatively simple and low in cost. It is successfully developed on the basis of my country's original type 5 adenovirus Ebola vaccine.
The vaccine can not only effectively induce the production of neutralizing antibodies, but also enhance cellular immunity.
The immunization program adopted is a one-shot immunization, which is very convenient for emergency use for some special populations.
Recombinant vaccines express and purify pathogen antigen proteins in engineered cells through genetic engineering, and then prepare them into vaccines.
The new coronavirus vaccine developed as a new technical route is also safe.
According to reports, my country’s new coronavirus vaccine is highly accessible and safe, and citizens who are willing to vaccinate can achieve vaccination. Under the premise that the safety of domestic vaccines is guaranteed, the public is advised to actively vaccinate domestic vaccines and establish their own Immunity and protection.
"From the perspective of the effect of vaccine use, the new coronavirus vaccines currently used in my country have been clinically studied in accordance with the specifications, and have been approved by the National Drug Administration, and will be used only after they have passed strict verification." said Li Bin, deputy director of the National Health Commission , During the storage and transportation of the vaccine, it is required to periodically detect and record the temperature to ensure that the new coronavirus vaccine is in a safe environment during the entire storage and transportation process.
"During the vaccination process, we have increased personnel training, requiring medical staff to strictly implement the operating procedures of'three checks, seven to one verification', and fully guarantee the effectiveness and safety of the vaccine through standardized operations. With the new coronavirus vaccination With the full implementation of the work, the number of people being vaccinated continues to increase, and it is believed that the effects of vaccine use will be further revealed.