TOKYO -- Just as the world was beginning to hope for a resumption of travel and other pre-pandemic activities, thanks to the rollout of coronavirus vaccines, the appearance of a new variant has sparked fresh fears and uncertainty.
Mutation potentially 70% more infectious; countries bar entrants from Britain
A scientist conducts research on a coronavirus vaccine at a laboratory at biotechnology company BIOCAD in Saint Petersburg, Russia, on May 20. © Reuters
TOKYO -- Just as the world was beginning to hope for a resumption of travel and other pre-pandemic activities, thanks to the rollout of coronavirus vaccines, the appearance of a new variant has sparked fresh fears and uncertainty.