World Unvaccinated at risk as Omicron to spread rapidly across U.S. this winter, Biden warns By - December 17, 2021 0 371 Facebook Twitter Pinterest WhatsApp Politics By Staff Reuters Posted December 17, 2021 1:23 am 1:47Fears rise Omicron will stretch already stressed health workers WATCH ABOVE: Fears rise Omicron will stretch already stressed health workers Advertisement Advertisement