This study is a prospective, single-arm, open-label clinical trial. A total of 100 patients with different cancers including breast cancer, hepatocellular carcinoma, lung cancer, esophageal cancer, gastric cancer and colorectal cancer were included in this heterologous prime-boost vaccination study. All of the patients will further accept 12 months follow-up study after prime-boost vaccination. Safety, reactogenicity and immunogenicity of the prime-boost vaccination in those patients will be carefully recorded and detected.
