- U.K. to Require Pre-Arrival Covid Tests for All TravelersBloomberg
- Live Updates: The Latest News on the Omicron Variant and Global CasesThe New York Times
- Britain tightens testing for inbound travellers, adds Nigeria to red listReuters UK
- International arrivals to UK will need to take pre-departure Covid testThe Guardian
- UK tightens travel testing rules amid omicron concernsWJHL-TV News Channel 11