COCOA
https://krsw.5ch.net/test/read.cgi/covid19/1592734205 />
新型コロナウイルス接触確認アプリ(COCOA) COVID-19 Contact-Confirming Application
https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/cocoa_00138.html
last-modified: 2021-05-08 19:29:00