#コロナウイルス
【悲報】　ファイザー社のワクチンは思ったほどは効果がない可能性も。
That study suggested the effectiveness of the vaccine after a single dose was as low as 33% - rather than the 89% that had initially been thought.
https://news.sky.com/story/covid-19-uk-to-look-very-carefully-at-vaccine-dosing-after-concerns-raised-over-level-of-protection-12193205