コロナVirusワクチン各国接種率ですから。中国で3歳以上接種と言ってもね効果無い物接種してもね。Coronavirus (COVID-19) Vaccinations - Statistics and Research - Our World in DataOur vaccination dataset uses the most recent official numbers from governments and health ministries worldwide. Population estimates for per-capita metrics are based on the United Nations World Population Prospects. Income groups are based on the World Bank classification. A full list of our country-specific sources is available at the bottom of this page, and we also answer frequently-asked questions there.Coronavirus (COVID-19) Vaccinations - Statistics and Research - Our World in Data