Success with COVID-19 vaccine for YS Biopharma despite investor woes

28 March 2023

Tuesday was a strange day for Hong Kong-based YS Biopharma.

Summit Healthcare Acquisition Corp (Nasdaq: YS), which has just merged with YS Biopharma, lost 37% of its market value in the latest of a string of declines since the merger.

This was despite the company reporting positive interim data from Phase II part of the Phase II/III head-to-head clinical study of its PIKA recombinant COVID-19 vaccine.

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