Immunogenicity of a spike protein subunit-based COVID-19 vaccine with broad protection against various SARS-CoV-2 variants in animal studies. oleh Ming-Chen Yang, Chun-Chung Wang, Wei-Chien Tang, Kuan-Ming Chen, Chu-Ying Chen, Hsiao-Han Lin, Yin-Cheng Hsieh, Nan-Hsuan Wang, Yin-Chieh Kuo, Ping-Tzu Chu, Hsin-Yi Tung, Yi-Chen Wu, Juo-Ling Sun, Sheng-Yu Liu, Wan-Fen Li, Wei-Han Lee, Jiann-Shiun Lai, Michael Chang, Ming-Tain Lai