Staff at Shanghai's biggest international airport are facing mass testing after a small outbreak of Covid-19 in the city was linked to several cargo handlers, with plans underway to vaccinate high-risk workers.
Authorities said two cargo handlers at Pudong airport who tested positive earlier this month had entered and cleaned a container arriving from North America - without wearing masks - in late October.
Sun Xiaodong, an official of Shanghai's disease control centre, said experts had concluded the source of infection in both cases can be traced to the container but did not say if samples had been taken from it.
Life in China - where the virus first emerged late last year - has largely returned to normal following strict testing and harsh