China's Stemirna raises $188M to fund mRNA COVID-19 vaccine ntaylor Fri, 06/04/2021 - 07:50.: China’s Stemirna Therapeutics has raised RMB 1.2 billion ($188 million) to bankroll development of an mRNA vaccine against COVID-19. Sequoia Capital China co-led the financing with backers including WuXi AppTec plus assists from OrbiMed and other investors. Stemirna set up shop in 2016 and went on to raise around $14 million in series A funding three years later.