claim: 千葉大研究発表文「十分なpcr検査の実施国では新型コロナの死亡率が低い」は根拠不明
summary: news media published misleading article based on report from chiba university that found correlation, not causation, between testing rates and death rates
subject_description: death rates are lower in countries with high testing rates
Motive_Description: media misinterpreted findings of research paper
author_description: nhk, asahi shimbun
keywords: coronavirus, chiba university, death rate, japan