1:57ABC NewsNovember 27, 2021New variant omicron detected in UK Travelers entering the U.K. from southern African countries must quarantine in a government-approved hotel for 10 days starting at 4 a.m. Sunday.Up Next in newsWhat makes the omicron variant different?November 27, 2021Many countries restricting or halting travel to and from South AfricaNovember 27, 2021Stocks tumble as new variant detected in South Africa, officials on high alertNovember 27, 2021