claim: 新型コロナウィルス感染防御に関するチェーンメールについて
summary: chain message manual on how to prevent infection supposedly written by keio university professor hideyuki saya
subject_description: coronavirus spreads during meal times, and other information in infection prevention 'manual' claimed to be authored by keio university professor
Motive_Description: spread preventative measures supposedly from a credible source
author_description: general public
keywords: coronavirus, japan, keio university, manual, hideyuki saya