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Notice of Nangong Disease Control and Prevention on Carrying out Sequential Enhanced Immunization of COVID-19 Vaccine

1. What is sequential immunization?

Sequential booster immunization refers to booster immunization with vaccines with different technical routes from basic immunization, also known as heterologous booster immunization. Homologous booster immunization refers to booster immunization with the same technical route as basic immunization.

As far as COVID-19 vaccine is concerned, if the first two doses are inoculated with inactivated COVID-19 vaccine, the subsequent booster is switched to other non-inactivated COVID-19 vaccine, which is called "sequential booster immunization".

The research data show that both homologous and heterologous booster immunization of COVID-19 vaccine can further improve the immune effect.

Second, the target population of COVID-19's sequential booster immunization

Within the whole city, people aged 18 and above were vaccinated with COVID-19 inactivated vaccine from Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company and Sinopharm Zhongsheng Wuhan Company for 6 months, except for contraindications.

People who have been vaccinated with the third dose of COVID-19 vaccine can't carry out sequential booster immunization.

third, where to get vaccinated?

Vaccination in COVID-19 follows the principle of territorial management and nearby vaccination. Citizens who meet the requirements for enhanced immunization can bring their ID cards and go to COVID-19 vaccination sites in Nangong City for consultation and vaccination.

Tips:

People aged 18 and above who have been vaccinated with two doses of COVID-19 inactivated vaccine from Sinopharm Zhongsheng Beijing Company, Beijing Kexing Company and Sinopharm Zhongsheng Wuhan Company for six months can choose the original technical route vaccine to carry out one dose of hypohomologous booster immunization, or choose the recombinant protein vaccine from Anhui Zhifeilong Kema Company or the adenovirus vector vaccine from Tianjin Kangxinuo Company to carry out one dose of sequential booster immunization.