claim: 「新型コロナウイルスの再感染は致死的」医師の動画に批判、専門家「信用しないで」
summary: a japanese man claiming to be a doctor posted a video saying reinfection of coronavirus is lethal
subject_description: youtube video posted by doctor claiming reinfection of covid is fatal
Motive_Description: effort to spread false medical information
author_description: general public
keywords: coronavirus, japan, niconico, youtube, reinfection, lethal, ニコニコ、再感染、致死的、saikansen, chishiteki、ウイルス