Au, Wing Ying, Chengjin Ye, Sydney Leigh Briner, Gianmarco Domenico Suarez, Jeewon Han, Xinzhou Xu, Jun-Gyu Park, Melinda Ann Brindley, Luis Martinez-Sobrido, and Peter Pak-Hang Cheung. 2022. “Systematic Comparison Between BNT162b2 and CoronaVac in the Seroprotection Against SARS-CoV-2 Alpha, Beta, Gamma, and Delta Variants.”. The Journal of Infection 84 (5): e55-e57.