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. 2021 Apr 7:1–12. doi: 10.1080/03639045.2021.1908343

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Figure 6. — Number of SARS-CoV-2 vaccines by type of platform and current phase. VLP: Virus like particle; VVr (Viral vector replicating); VVnr (Viral vector non-replicating); APC (Antigen presenting cell).