Here the authors present interim results from a clinical trial of a protein-based tetravalent SARS-CoV-2 vaccine (SCTV01E). SCTV01E demonstrates a comparable safety profile to a bivalent protein vaccine, while exhibiting superior immunogenicity compared to both a bivalent protein vaccine and an mRNA vaccine.
- Suad Hannawi
- Linda Saf Eldin
- Liangzhi Xie