FILE PHOTO: Syringes with needles are seen in front of a displayed stock graph and words "Omicron SARS-CoV-2" in this illustration taken, November 27, 2021. REUTERS/Dado Ruvic/Illustration
(Reuters) - The Omicron variant, spreading now in southern Africa and detected in over 30 other countries, has prompted fears it could significantly undermine the effectiveness of vaccines against COVID-19.
Yet as scientists race to understand the full consequences of Omicron, some are also asking whether this new version of coronavirus might cause milder illness than its predecessors. While they caution that it is far too early to draw conclusions, here is what is known so far:
