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BBIBP-CorV and ZF2001 are two COVID-19 vaccines developed in China. BBIBP-CorV is an inactivated virus vaccine approved for conditional marketing authorisation1 and ZF2001 is a recombinant dimeric receptor-binding domain (RBD) protein vaccine currently in phase 3 clinical trials and approved for emergency use in China and Uzbekistan.2,3 Both vaccines showed good immunogenicity in phase 1 and 2 trials.1,3
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Huang et al. (2021) studied this question.
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