https://ourworldindata.org/grapher/share-people-fully-vaccinated-covid?country=DEU~JPN~SGP~USA~OWID_WRL~ISR~KOR
https://news.v.daum.net/v/20211013204005571
https://www.news1.kr/articles/?4458568
https://newsis.com/view/?id=NISX20211012_0001610512&cID=10201&pID=10200