China coronavirus vaccine: China grants its first COVID-19 vaccine ‘Ad5-nCOV’ patent to CanSino Image Source : FIERCEPHARMA Ad5-nCOV: China grants its first COVID-19 vaccine patent to CanSino China has granted the first invention patent to a Covid-19 vaccine co-developed by biopharmaceutical firm CanSino Biologics Inc in the country, which experts said demonstrates the vaccine's originality and creativity.










