A board shows cancelled international flights at Haneda International Airport in Tokyo, Japan, on November 29, 2021. Japan is among a number of Asian countries that have enforced more stringent travel restrictions in response to the Omicron threat. Photo: EPA-EFE
A board shows cancelled international flights at Haneda International Airport in Tokyo, Japan, on November 29, 2021. Japan is among a number of Asian countries that have enforced more stringent travel restrictions in response to the Omicron threat. Photo: EPA-EFE