One of the reason why Japan did not suffer from major outbreaks of Covid-19/他国に比べ日本でコロナの爆発的感染がなかった訳.https://www.loveofmusic.co/single-post/one-of-the-reason-why-japan-did-not-suffer-from-major-outbreaks-of-covid-19-他国に比べ日本でコロナの爆発的感染がなかった訳 Madoka Yoshida