https://realestate.yahoo.co.jp/knowledge/chiebukuro/detail/1438040599/

https://www.arcgis.com/apps/opsdashboard/index.html

https://www.niid.go.jp/niid/ja/flu-m/2112-idsc/jinsoku/1852-flu-jinsoku-7.html

https://www.jmha.or.jp/contentsdata/page-municipalhospital-file01.pdf

https://www.jetro.go.jp/biznews/2020/03/10271b8ee2dd436d.html