https://mainichi.jp/articles/20200630/dde/012/040/0170
https://news.yahoo.co.jp/articles/0748a1bcbc29777790df8b58ef5236e4dbe4e186
https://news.tbs.co.jp/newseye/tbs_newseye4015491.html
https://brain-gr.com/tokinaika_clinic/blog/health/if-antibodies-to-the-new-coronavirus-form-in-your-body/