We're seeing cases of human transmission that aren't from returning travel, that are just happening in the community, and we're seeing people infected with COVID-19 when we don't even know where the infection came from.
여행을 통해 감염되지 않은 사례가 공동체 안에서 나타나고 있고, 감염 경로도 모르는 감염자들이  나오고 있습니다.