HealthGlobal issuesAre new mRNA vaccines necessary?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealthGlobal issuesDerrick Wiliams09/08/2022September 8, 2022Health officials all over the world are approving second-generation mRNA vaccines. How do they work? Do they provide better protection against the omicron variant? An interview with Israeli virologist Jonathan Gershoni.https://p.dw.com/p/4Ga1lAdvertisement