Breadcrumb Home / Resources / Publications / What is the Omicron Variant of Concern? Publication What is the Omicron Variant of Concern? 27 December 2021 The poster contains WHO verified information of Omicron variant in English, Albanian and Serbian, Caption: Basic information on Omicron variant of COVID-19 Photo: © WHO 2021 Published by RCO WHO English File type: PDF Downloads: 3755 Albanian File type: PDF Downloads: 3112 Serbian File type: PDF Downloads: 3394 Goals we are supporting through this initiative Related Resources Resources 25 July 2025 WHO: Health Advice for hot weather Resources 04 July 2025 Protect Your Health During Wildfires Resources 24 June 2025 The Common Kosovo Analysis – Summary Report