・COVID-19 Vaccines(Ministry of Health,Labour and Welfare(厚生労働省))
・Translations of Prevaccination Screening Questionnaire for COVID-19 vaccine(厚生労働省))
・COVID-19 Vaccines(Prime Minister of Japan and His Cabinet(内閣府))
・COVID-19 disease related information(Immigration Services Agency of Japan(出入国在留管理庁))
・Information about COVID-19 Vaccination in the City of Sapporo(札幌市)