Categories Articles Omicron subvariant may be more infectious and cause more severe COVID symptoms, study warns Post author By crystalg Post date February 21, 2022 Study Finds Tags cause, COVID, Infectious, More, Omicron, Severe, Study, subvariant, symptoms, Warns ← Russia’s recognition of Ukraine’s separatist regions as independent states is a ‘clear attack’ on the country’s sovereignty, says US Sec. of State Antony Blinken → Fear Of War Grips Europe As Russia Orders Troops Into Ukraine