A public health crisis has, through travel, resulted in a large number of imported cases in several countries, which progressively set off local outbreaks through gradual but large-scale community transmission.
Kriza javnog zdravstva potpomognuta putovanjima rezultirala je velikim brojem uvezenih slučajeva u nekoliko zemalja, koji su stvorili lokalna žarišta postupnim, ali opsežnim prenošenjem virusa unutar zajednice.