China CDC: COVID-19 Vaccines of different technical routes cannot be mixed
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China CDC: Vaccines of different technical routes cannot be mixed. The third dose is being studied
China CDC: COVID-19 Vaccines of different technical routes cannot be mixed. Experts from the Chinese Center for Disease Control and Prevention said on the 31st that China is currently vaccinated against COVID-19, and vaccines of different technical routes cannot be mixed. As for whether an additional third dose of vaccine is needed, it is still under study.
The picture shows students from the No. 5 Middle School in Putian, Fujian, vaccinated at the school on the 30th. (Provided by China News Service)
Experts from the Chinese Center for Disease Control and Prevention said today that China is currently vaccinated against COVID-19, and vaccines of different technical routes cannot be mixed. There is not enough evidence to show that the third dose of vaccination is needed, and the Chinese side is still studying the booster shot.
In order to increase the protection against Delta mutant strains, many countries have successively opened up different technical routes of COVID-19 vaccine mixing, and studied the third dose of vaccination; among them, Israel has taken the lead in announcing an additional third dose for people over 60 years old. However, China still has reservations.
Based on reports from China News Network and The Paper, China’s State Council Joint Prevention and Control Mechanism held a press conference in Beijing on the 31st to introduce the situation of epidemic prevention and control and COVID-19 vaccination.
In response to questions from the media, Wang Huaqing, chief expert of the China Disease Control and Immunization Program, said that in the current vaccination process in China, vaccines of different technical routes cannot be replaced. Complete with inactivated vaccines. If you are vaccinated with a recombinant protein vaccine, the subsequent second and third shots can only be completed with a recombinant protein vaccine.
He said that China still has to follow the original “COVID-19 Vaccination Technical Guidelines First Edition” regulations, not mixed.
Shao Yiming, chief expert of CDC and consultant of the World Health Organization’s Vaccine Research and Development Committee, said at the meeting that all countries are conducting research on COVID-19 vaccine booster immunization, and there is not enough evidence to show that the third dose needs to be administered to the entire population. Vaccinations.
He said that at present, it seems that after all vaccines are vaccinated, the antibody level will decline over time, but the immune memory still exists, so once the virus is infected, it can stimulate a strong memory response in about a week. Antibodies will rise sharply.
Shao Yiming said that the preliminary observation is that there is no need for booster vaccination for the general population who has completed immunization within one year. However, for the elderly who have completed the immunization for more than 6 to 12 months and have weak immune functions and patients with underlying diseases, as well as those who need to work in high-risk areas due to work, and those who are engaged in high-risk occupations in China, Whether it is necessary to launch the booster needle and when to start the booster needle vaccination is being studied.
China CDC: COVID-19 Vaccines of different technical routes cannot be mixed. The third dose is being studied.
(source:internet, reference only)
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