HealthCan a patent waiver speed up the COVID vaccination drive? To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealthNina Raddy04/30/2021April 30, 2021Over 100 countries, led by India and South Africa, are demanding a patent waiver to expand COVID-19 vaccine production. But why are some wealthy nations blocking the efforts?https://p.dw.com/p/3snltAdvertisement