Clover Biopharma adds $230M as Covid-19 vaccine heads to pivotal test February 23, 2021 Auto Bot BioPharma, biopharma nl, China, Covid-19 Vaccine, Pharma, Vaccines 0 The protein-based Covid-19 vaccine from Clover Biopharmaceuticals has distribution and storage advantages compared to messenger RNA vaccines. If the vaccine succeeds in a Phase 2/3 test, China-based Clover will distribute it globally via COVAX.