Hellow guys, Welcome to my website, and you are watching 신종 코로나 '1급 감염병'으로 관리 / YTN 사이언스. and this vIdeo is uploaded by YTN 사이언스 투데이 at 2020-01-28T18:51:38-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
