LIVE: Q&A on COVID-19 vaccines with Kate O’Brien, WHO Immunization Director Channel: World Health Organization (WHO)5K views • 05/05/2022Related VideosLIVE Q&A on COVID-19 vaccines with Dr Kate O'Brien. Ask your questions!LIVE Q&A with Dr Kate O'Brien on #WorldImmunizationWeekLIVE: Q&A on the occasion of World Immunization Week with Dr Kate O'Brien