People line up to get on the Air France flight to Paris at OR Tambo International Airport in Johannesburg, South Africa, Friday Nov. 26, 2021. A slew of nations moved to stop air travel from southern Africa on Friday in reaction to news of a new, potentially more transmissible COVID-19 variant that has been detected in South Africa. [AP Photo, Jerome Delay]
The discovery of a new coronavirus variant named Omicron triggered global alarm on Friday as countries rushed to suspend travel from southern Africa and stock markets on both sides of the Atlantic suffered their biggest falls in more than a year.