https://www.siliconvalley.com/2021/11/26/new-omicron-variant-stokes-world-fears-triggers-travel-bans/

BRUSSELS (AP) — The discovery of a new coronavirus variant sent a chill through much of the world Friday as nations raced to halt air travel, markets fell sharply and scientists held emergency meetings to weigh the exact risks, which were largely unknown.

A World Health Organization panel named the variant “omicron” and classified it as a highly transmissible virus of concern, the same category that includes the delta variant, the world’s most prevalent. The panel said early evidence suggests an increased risk of reinfection.