HONG KONG – Shortly after Australia’s recent provisional approval for the mRNA-based COVID-19 vaccine Comirnaty (tozinameran), originally developed by Pfizer Inc. and Biontech SE, Hong Kong has approved it, too, for emergency use ahead of rivals developed in mainland China. It is the first vaccine to be approved in the Chinese territory, made possible through a collaboration between Biontech and Shanghai Fosun Pharmaceutical Group Co. Ltd.