LIVE: Q&A on the occasion of World Immunization Week with Dr Kate O’Brien Blog 05/05/2026 · 0 Comment LIVE: Q&A on the occasion of World Immunization Week with Dr Kate O'BrienLive Q&A on World Immunization Week. Ask your question about how vaccines work!LIVE Q&A with Dr Kate O'Brien on #WorldImmunizationWeekWorld Immunization Week 2024: Humanly PossibleLIVE Q&A on COVID-19 vaccines with Dr Kate O'Brien. Ask your questions!Immunization - Live Q&A of 23 April 2020Vaccine Confidence, Misinformation & Last-Mile Delivery | World Immunization Week 2026World Immunization Week | Message from Dr Ahmed Jamsheed MohamedLive Q&A with Dr @Kate_L_OBrien & Dr Alejandro Cravioto about #COVID19 vaccines. #AskWHOLIVE: Q&A on COVID-19 vaccines with Kate O'Brien, WHO Immunization Director12