1, vero COVID-19 vaccine is COVID-19 inactivated vaccine (Vero cells). The vaccine is suitable for people aged 18 and above, and can be used to prevent diseases caused by novel coronavirus (novel coronavirus-19). The basic immunization program of inactivated vaccine is 2 doses with an interval of 14~28 days; The dosage for human use is 0.5ml each time. At present, there are three companies that produce inactivated vaccines, namely the inactivated vaccine of Sinopharm Zhongsheng Beijing Company, which was approved by the State Medical and Drug Administration for conditional listing on February 3, 2020. The inactivated vaccine of Sinopharm Zhongsheng Wuhan Company 202 1 was approved by the State Medical and Drug Administration for conditional marketing on February 28th. The inactivated vaccine of Beijing Kexing Zhongwei Company, 202 1, was approved by the State Pharmaceutical Administration for conditional marketing on February 5th.
2. According to the previous clinical trial research, if only one dose of inactivated vaccine is inoculated, it will not produce the expected immune effect, and two doses need to be injected to enhance immunity. The interval between two doses of inoculation is recommended to be ≥3 weeks, and the second dose should be completed as soon as possible within 8 weeks. If you haven't been vaccinated for more than 8 weeks, you don't need to be vaccinated again. Just finish the second injection as soon as possible.