Full Coverage
Biden restricts travel from South Africa and seven other countries starting Monday
By Kaitlan Collins
Top news
All coverage
World Health Organization calls new COVID strain a "variant of concern"
By Allison Elyse Gualtieri
U.S. President Biden calls for intellectual property protection waivers after Omicron discovery
By Heather Timmons, Nandita Bose & Lucia Mutikani
South Africa health minister says travel bans are 'unjustified,' as world reacts to new Covid variant
By Annika Kim Constantino
What to know about the omicron variant and subvariant BA.2
By Joel Achenbach, Meryl Kornfield & Lindsey Bever
Biden admin announces travel ban for South Africa and 7 other countries, citing new variant
By Myah Ward
Omicron: What we know about Covid strain prompting fresh global restrictions
By Clive Cookson & Oliver Barnes
What to know about omicron, the new COVID variant
By Michaeleen Doucleff, Joel Rose & Nicole Hernandez Hammer
U.S. imposes travel ban from eight African countries over Omicron variant
By Nandita Bose & David Shepardson
WHO labels new Covid strain, named omicron, a 'variant of concern,' citing possible increased reinfection risk
By Robert Towey & Sam Meredith
U.S. to restrict travel from South Africa, 7 other countries as new Covid variant emerges
By Leslie Josephs & Christina Wilkie